diff --git a/.circleci/config.yml b/.circleci/config.yml
index 446dcca..4e38bc3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -37,11 +37,11 @@ jobs:
 
     <<: *defaults_gradle
 
-  build_gradle_jdk8:
+  build_gradle_jdk11:
     <<: *defaults
 
     docker:
-      - image: cimg/openjdk:8.0
+      - image: cimg/openjdk:11.0
 
     <<: *defaults_gradle
 
@@ -49,5 +49,5 @@ workflows:
   version: 2
   gradle:
     jobs:
-      - build_gradle_jdk8
+      - build_gradle_jdk11
       - build_gradle_jdk16
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index fb7f4a8..5ca49eb 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -1,6 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="cryptoprice (1)" />
+        <module name="cryptoprice" />
+      </profile>
+    </annotationProcessing>
     <bytecodeTargetLevel target="11" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 7546138..4ca4d4d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -9,7 +9,7 @@
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="15" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="16" project-jdk-type="JavaSDK" />
   <component name="SuppressKotlinCodeStyleNotification">
     <option name="disableForAll" value="true" />
   </component>
diff --git a/bitbucket-pipelines.yml b/bitbucket-pipelines.yml
index 7d98402..219c29f 100644
--- a/bitbucket-pipelines.yml
+++ b/bitbucket-pipelines.yml
@@ -1,4 +1,4 @@
-image: openjdk:8
+image: openjdk:11
 
 pipelines:
   default:
diff --git a/build.gradle.kts b/build.gradle.kts
index 9d4ead7..352b0e4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -48,8 +48,8 @@ application {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
     withSourcesJar()
 }
 
diff --git a/pom.xml b/pom.xml
index 9121609..a551cde 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
       <dependency>
         <groupId>org.jetbrains.kotlin</groupId>
         <artifactId>kotlin-bom</artifactId>
-        <version>1.5.20</version>
+        <version>1.5.21</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -50,7 +50,7 @@
     <dependency>
       <groupId>org.jetbrains.kotlin</groupId>
       <artifactId>kotlin-stdlib-jdk8</artifactId>
-      <version>1.5.20</version>
+      <version>1.5.21</version>
       <scope>runtime</scope>
     </dependency>
     <dependency>