diff --git a/.idea/.gitignore b/.idea/.gitignore
deleted file mode 100644
index 26d3352..0000000
--- a/.idea/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index e310056..7d0d0ad 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -2,22 +2,18 @@
   <code_scheme name="Project" version="173">
     <JetCodeStyleSettings>
       <option name="PACKAGES_TO_USE_STAR_IMPORTS">
-        <value />
+        <value>
+          <package name="java.util" alias="false" withSubpackages="false" />
+          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="false" />
+          <package name="io.ktor" alias="false" withSubpackages="false" />
+        </value>
       </option>
       <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="2147483647" />
       <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="2147483647" />
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
     <codeStyleSettings language="kotlin">
-      <option name="CALL_PARAMETERS_WRAP" value="5" />
-      <option name="CALL_PARAMETERS_LPAREN_ON_NEXT_LINE" value="true" />
-      <option name="CALL_PARAMETERS_RPAREN_ON_NEXT_LINE" value="true" />
-      <option name="METHOD_PARAMETERS_WRAP" value="5" />
-      <option name="METHOD_PARAMETERS_LPAREN_ON_NEXT_LINE" value="true" />
-      <option name="METHOD_PARAMETERS_RPAREN_ON_NEXT_LINE" value="true" />
-      <option name="EXTENDS_LIST_WRAP" value="1" />
-      <option name="METHOD_CALL_CHAIN_WRAP" value="1" />
-      <option name="ASSIGNMENT_WRAP" value="1" />
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </codeStyleSettings>
   </code_scheme>
 </component>
\ No newline at end of file
diff --git a/.idea/copyright/Erik_s_Copyright_Notice.xml b/.idea/copyright/Erik_s_Copyright_Notice.xml
new file mode 100644
index 0000000..df1b749
--- /dev/null
+++ b/.idea/copyright/Erik_s_Copyright_Notice.xml
@@ -0,0 +1,6 @@
+<component name="CopyrightManager">
+  <copyright>
+    <option name="notice" value="&amp;#36;file.fileName&#10;&#10;Copyright (c) 2021-&amp;#36;today.year, Erik C. Thauvin (erik@thauvin.net)&#10;All rights reserved.&#10;&#10;Redistribution and use in source and binary forms, with or without&#10;modification, are permitted provided that the following conditions are met:&#10;&#10;  Redistributions of source code must retain the above copyright notice, this&#10;  list of conditions and the following disclaimer.&#10;&#10;  Redistributions in binary form must reproduce the above copyright notice,&#10;  this list of conditions and the following disclaimer in the documentation&#10;  and/or other materials provided with the distribution.&#10;&#10;  Neither the name of this project nor the names of its contributors may be&#10;  used to endorse or promote products derived from this software without&#10;  specific prior written permission.&#10;&#10;THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot;&#10;AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE&#10;IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE&#10;DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE&#10;FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL&#10;DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR&#10;SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER&#10;CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,&#10;OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE&#10;OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." />
+    <option name="myName" value="Erik's Copyright Notice" />
+  </copyright>
+</component>
\ No newline at end of file
diff --git a/.idea/copyright/profiles_settings.xml b/.idea/copyright/profiles_settings.xml
new file mode 100644
index 0000000..1419e40
--- /dev/null
+++ b/.idea/copyright/profiles_settings.xml
@@ -0,0 +1,3 @@
+<component name="CopyrightManager">
+  <settings default="Erik's Copyright Notice" />
+</component>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index f243f08..562d6ca 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -30,7 +30,14 @@
       <option name="IGNORE_JAVADOC_PERIOD" value="true" />
       <option name="IGNORE_DUPLICATED_THROWS" value="false" />
       <option name="IGNORE_POINT_TO_ITSELF" value="false" />
-      <option name="myAdditionalJavadocTags" value="created,created,created" />
+      <option name="myAdditionalJavadocTags" value="created" />
     </inspection_tool>
+    <inspection_tool class="LocalCanBeFinal" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="REPORT_VARIABLES" value="true" />
+      <option name="REPORT_PARAMETERS" value="true" />
+      <option name="REPORT_CATCH_PARAMETERS" value="false" />
+      <option name="REPORT_IMPLICIT_FINALS" value="false" />
+    </inspection_tool>
+    <inspection_tool class="RedundantExplicitVariableType" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
   </profile>
 </component>
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
index 46f5ce8..cfd3ca8 100644
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@@ -1,21 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="RemoteRepositoriesConfiguration">
-    <remote-repository>
-      <option name="id" value="central" />
-      <option name="name" value="Central Repository" />
-      <option name="url" value="https://repo.maven.apache.org/maven2" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="MavenRepo" />
-      <option name="name" value="MavenRepo" />
-      <option name="url" value="https://repo.maven.apache.org/maven2/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven" />
-      <option name="name" value="maven" />
-      <option name="url" value="https://oss.sonatype.org/content/repositories/snapshots" />
-    </remote-repository>
     <remote-repository>
       <option name="id" value="central" />
       <option name="name" value="Maven Central repository" />
@@ -27,9 +12,14 @@
       <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
     </remote-repository>
     <remote-repository>
-      <option name="id" value="MavenLocal" />
-      <option name="name" value="MavenLocal" />
-      <option name="url" value="file:$MAVEN_REPOSITORY$/" />
+      <option name="id" value="MavenRepo" />
+      <option name="name" value="MavenRepo" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven" />
+      <option name="name" value="maven" />
+      <option name="url" value="https://oss.sonatype.org/content/repositories/snapshots" />
     </remote-repository>
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/kotlinScripting.xml b/.idea/kotlinScripting.xml
deleted file mode 100644
index bc444de..0000000
--- a/.idea/kotlinScripting.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="KotlinScriptingSettings">
-    <option name="suppressDefinitionsCheck" value="true" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/libraries-with-intellij-classes.xml b/.idea/libraries-with-intellij-classes.xml
deleted file mode 100644
index 9fa3156..0000000
--- a/.idea/libraries-with-intellij-classes.xml
+++ /dev/null
@@ -1,65 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="libraries-with-intellij-classes">
-    <option name="intellijApiContainingLibraries">
-      <list>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIU" />
-          <option name="groupId" value="com.jetbrains.intellij.idea" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIU" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIC" />
-          <option name="groupId" value="com.jetbrains.intellij.idea" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIC" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPY" />
-          <option name="groupId" value="com.jetbrains.intellij.pycharm" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPY" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPC" />
-          <option name="groupId" value="com.jetbrains.intellij.pycharm" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPC" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="clion" />
-          <option name="groupId" value="com.jetbrains.intellij.clion" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="clion" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="riderRD" />
-          <option name="groupId" value="com.jetbrains.intellij.rider" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="riderRD" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="goland" />
-          <option name="groupId" value="com.jetbrains.intellij.goland" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="goland" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-      </list>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 65b80ca..cbfe0de 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,16 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="MavenProjectsManager">
-    <option name="originalFiles">
-      <list>
-        <option value="$PROJECT_DIR$/pom.xml" />
-        <option value="$PROJECT_DIR$/pom.xml.asc" />
-      </list>
-    </option>
-  </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="17" project-jdk-type="JavaSDK" />
-  <component name="SuppressKotlinCodeStyleNotification">
-    <option name="disableForAll" value="true" />
-  </component>
 </project>
\ No newline at end of file
diff --git a/LICENSE.txt b/LICENSE.txt
index bab61e8..ab5f3ce 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2021, Erik C. Thauvin (erik@thauvin.net)
+Copyright (c) 2021-2022, Erik C. Thauvin (erik@thauvin.net)
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/build.gradle.kts b/build.gradle.kts
index 008cf81..0b183a6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,19 +1,21 @@
 import org.jetbrains.dokka.gradle.DokkaTask
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
 import org.gradle.api.tasks.testing.logging.TestExceptionFormat
 import org.gradle.api.tasks.testing.logging.TestLogEvent
 
+
 plugins {
     id("application")
-    id("com.github.ben-manes.versions") version "0.39.0"
-    id("io.gitlab.arturbosch.detekt") version "1.19.0-RC1"
+    id("com.github.ben-manes.versions") version "0.40.0"
+    id("io.gitlab.arturbosch.detekt") version "1.19.0"
     id("java")
     id("maven-publish")
-    id("org.jetbrains.dokka") version "1.5.31"
-    id("org.jetbrains.kotlinx.kover") version "0.4.2"
+    id("org.jetbrains.dokka") version "1.6.10"
+    id("org.jetbrains.kotlinx.kover") version "0.4.4"
     id("org.sonarqube") version "3.3"
     id("signing")
-    kotlin("jvm") version "1.6.0"
+    kotlin("jvm") version "1.6.10"
 }
 
 defaultTasks(ApplicationPlugin.TASK_RUN_NAME)
@@ -27,6 +29,13 @@ val gitHub = "ethauvin/$name"
 val mavenUrl = "https://github.com/$gitHub"
 val publicationName = "mavenJava"
 
+fun isNonStable(version: String): Boolean {
+    val stableKeyword = listOf("RELEASE", "FINAL", "GA").any { version.toUpperCase().contains(it) }
+    val regex = "^[0-9,.v-]+(-r)?$".toRegex()
+    val isStable = stableKeyword || regex.matches(version)
+    return isStable.not()
+}
+
 repositories {
     mavenCentral()
     maven { url = uri("https://oss.sonatype.org/content/repositories/snapshots") }
@@ -36,8 +45,8 @@ dependencies {
     implementation(platform(kotlin("bom")))
     implementation(kotlin("stdlib-jdk8"))
 
-    implementation("com.squareup.okhttp3:okhttp:4.9.1")
-    implementation("org.json:json:20210307")
+    implementation("com.squareup.okhttp3:okhttp:4.9.3")
+    implementation("org.json:json:20211205")
 
     testImplementation(kotlin("test"))
 }
@@ -63,7 +72,6 @@ sonarqube {
         property("sonar.host.url", "https://sonarcloud.io")
         property("sonar.sourceEncoding", "UTF-8")
         property("sonar.coverage.jacoco.xmlReportPaths", "${project.buildDir}/reports/kover/report.xml")
-
     }
 }
 
@@ -78,6 +86,12 @@ tasks {
         args = listOf("BTC","ETH","LTC")
     }
 
+    withType<DependencyUpdatesTask> {
+        rejectVersionIf {
+            isNonStable(candidate.version)
+        }
+    }
+
     withType<KotlinCompile>().configureEach {
         kotlinOptions.jvmTarget = java.targetCompatibility.toString()
     }
diff --git a/examples/build.gradle.kts b/examples/build.gradle.kts
index 18c85ce..d0439f0 100644
--- a/examples/build.gradle.kts
+++ b/examples/build.gradle.kts
@@ -2,8 +2,8 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     id("application")
-    id("com.github.ben-manes.versions") version "0.39.0"
-    kotlin("jvm") version "1.6.0"
+    id("com.github.ben-manes.versions") version "0.40.0"
+    kotlin("jvm") version "1.6.10"
 }
 
 // ./gradlew run 
diff --git a/examples/gradle/wrapper/gradle-wrapper.properties b/examples/gradle/wrapper/gradle-wrapper.properties
index e750102..2e6e589 100644
--- a/examples/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index e750102..2e6e589 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/pom.xml b/pom.xml
index e2c4f1d..ae483a1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
       <dependency>
         <groupId>org.jetbrains.kotlin</groupId>
         <artifactId>kotlin-bom</artifactId>
-        <version>1.5.31</version>
+        <version>1.6.10</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -50,19 +50,19 @@
     <dependency>
       <groupId>org.jetbrains.kotlin</groupId>
       <artifactId>kotlin-stdlib-jdk8</artifactId>
-      <version>1.5.31</version>
+      <version>1.6.10</version>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>com.squareup.okhttp3</groupId>
       <artifactId>okhttp</artifactId>
-      <version>4.9.1</version>
+      <version>4.9.3</version>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.json</groupId>
       <artifactId>json</artifactId>
-      <version>20210307</version>
+      <version>20211205</version>
       <scope>runtime</scope>
     </dependency>
   </dependencies>
diff --git a/src/main/kotlin/net/thauvin/erik/crypto/CryptoException.kt b/src/main/kotlin/net/thauvin/erik/crypto/CryptoException.kt
index 583c872..b5303df 100644
--- a/src/main/kotlin/net/thauvin/erik/crypto/CryptoException.kt
+++ b/src/main/kotlin/net/thauvin/erik/crypto/CryptoException.kt
@@ -1,7 +1,7 @@
 /*
  * CryptoException.kt
  *
- * Copyright (c) 2021, Erik C. Thauvin (erik@thauvin.net)
+ * Copyright (c) 2021-2022, Erik C. Thauvin (erik@thauvin.net)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/main/kotlin/net/thauvin/erik/crypto/CryptoPrice.kt b/src/main/kotlin/net/thauvin/erik/crypto/CryptoPrice.kt
index 399c8fa..7ba8c8c 100644
--- a/src/main/kotlin/net/thauvin/erik/crypto/CryptoPrice.kt
+++ b/src/main/kotlin/net/thauvin/erik/crypto/CryptoPrice.kt
@@ -1,7 +1,7 @@
 /*
  * CryptoPrice.kt
  *
- * Copyright (c) 2021, Erik C. Thauvin (erik@thauvin.net)
+ * Copyright (c) 2021-2022, Erik C. Thauvin (erik@thauvin.net)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/test/kotlin/net/thauvin/erik/crypto/CryptoPriceTest.kt b/src/test/kotlin/net/thauvin/erik/crypto/CryptoPriceTest.kt
index d85318a..6d7d95b 100644
--- a/src/test/kotlin/net/thauvin/erik/crypto/CryptoPriceTest.kt
+++ b/src/test/kotlin/net/thauvin/erik/crypto/CryptoPriceTest.kt
@@ -1,8 +1,41 @@
+/*
+ * CryptoPriceTest.kt
+ *
+ * Copyright (c) 2021-2022, Erik C. Thauvin (erik@thauvin.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ *
+ *   Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ *
+ *   Neither the name of this project nor the names of its contributors may be
+ *   used to endorse or promote products derived from this software without
+ *   specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 package net.thauvin.erik.crypto
 
 import net.thauvin.erik.crypto.CryptoPrice.Companion.apiCall
 import net.thauvin.erik.crypto.CryptoPrice.Companion.spotPrice
 import net.thauvin.erik.crypto.CryptoPrice.Companion.toPrice
+import org.json.JSONObject
 import java.time.LocalDate
 import java.util.Locale
 import kotlin.test.Test
@@ -61,6 +94,10 @@ class CryptoPriceTest {
         assertEquals("BTC", price.base, "buy BTC")
         assertEquals("USD", price.currency, "buy BTC is USD")
         assertTrue(price.amount.signum() > 0, "buy BTC > 0")
+
+        val response = apiCall(listOf("exchange-rates"), mapOf("currency" to "usd"))
+        val rates = JSONObject(response).getJSONObject("data").getJSONObject("rates")
+        assertEquals("1.0", rates.getString("USD"), "usd rate")
     }
 
     @Test
@@ -81,7 +118,7 @@ class CryptoPriceTest {
         try {
             spotPrice("FOOBAR")
         } catch (e: CryptoException) {
-            assertTrue(e.statusCode != 400, "FOOBAR status code is not 400")
+            assertNotEquals(400, e.statusCode, "FOOBAR status code is not 400")
         }
     }