diff --git a/kobalt/src/Build.kt b/kobalt/src/Build.kt
index 810d6020..0c9d4266 100644
--- a/kobalt/src/Build.kt
+++ b/kobalt/src/Build.kt
@@ -19,8 +19,6 @@ import java.nio.file.Paths
 import java.nio.file.StandardCopyOption
 
 object Versions {
-    val okhttp = "3.2.0"
-    val okio = "1.6.0"
     val retrofit = "2.0.2"
     val gson = "2.6.2"
     val aether = "1.1.0"
@@ -74,11 +72,10 @@ val kobaltPluginApi = project {
                 "com.google.inject:guice:4.0",
                 "com.google.inject.extensions:guice-assistedinject:4.0",
                 "javax.inject:javax.inject:1",
-                "com.google.guava:guava:19.0-rc2",
+                "com.google.guava:guava:19.0",
                 "org.apache.maven:maven-model:${Versions.maven}",
-                "io.reactivex:rxjava:1.0.16",
+                "io.reactivex:rxjava:1.1.5",
                 "com.google.code.gson:gson:${Versions.gson}",
-                "com.squareup.okio:okio:${Versions.okio}",
                 "com.squareup.retrofit2:retrofit:${Versions.retrofit}",
                 "com.squareup.retrofit2:converter-gson:${Versions.retrofit}",
                 "com.beust:jcommander:1.48",
@@ -137,7 +134,6 @@ val kobaltApp = project(kobaltPluginApi, wrapper) {
                 "org.apache.maven:maven-model:${Versions.maven}",
                 "com.google.code.findbugs:jsr305:3.0.1",
                 "com.google.code.gson:gson:${Versions.gson}",
-                "com.squareup.okhttp3:okhttp:${Versions.okhttp}",
                 "com.squareup.retrofit2:retrofit:${Versions.retrofit}",
                 "com.squareup.retrofit2:converter-gson:${Versions.retrofit}",
                 "org.codehaus.plexus:plexus-utils:3.0.22",