diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3f14fef62..e121ccd91 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,9 +16,10 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Set up JDK 11
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v3
         with:
           java-version: 11
+          distribution: 'zulu'
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
       - name: Build and test with Gradle
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f057807ff..5e4fbc32e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,31 +1,33 @@
 1.0.0-beta12 (Not released)
 ========================================
-**Breaking Changes: **
+## Breaking Changes: 
 wrapResponse from SuspendResponseConverter got renamed to wrapSuspendResponse. This add the possibility to have ResponseConverter and SuspendResponseConverter implemented in the same class.
 
-**Changes: **
+## Changes: 
 - throw compiler time error when you use @Path without the corresponding value inside the relative url path
 - every generated implementation class of an interface that Ktorfit generates will now contain a "create" ext function that can be used instead of the generic create() function
 e.g. Let's say you have a interface GithubService 
 
-'''kotlin
+```kotlin
 val kttorfit = ktorfit {
 baseUrl("http://example.com/")
 }.create<GithubService>()
-'''
-
+```
 or this
 
-'''kotlin
+```kotlin
 val kttorfit = ktorfit {
 baseUrl("http://example.com/")
 }.createGithubService()
-'''
+```
 
 By default, IntelliJ/Android Studio can't find the generated code, you need to add the KSP generated folder to the sourcesets 
 like this:
 
+```kotlin
 kotlin.srcDir("build/generated/ksp/jvm/jvmMain/")
+```
+
 
 1.0.0-beta11 (21-08-2022)
 ========================================
@@ -42,30 +44,41 @@ kotlin.srcDir("build/generated/ksp/jvm/jvmMain/")
 - @PATCH, @POST, @PUT now have a default value #22
 - Ktorfit now uses a builder pattern for setup
  e.g. change this: 
-  Ktorfit("https://example.com/", HttpClient {})
+ ```kotlin
+ Ktorfit("https://example.com/", HttpClient {})
+```
+ 
 
 to this: 
 
+```kotlin
 Ktorfit.Builder()
 .baseUrl("https://example.com/")
 .httpClient(HttpClient {})
 .build()
+```
+
 - 
-**Breaking Changes: **
+## Breaking Changes:
 @Headers now requires a vararg of String instead of an Array
 e.g. you need to change from:
 
+```kotlin
 @Headers(
 ["Authorization: token ghp_abcdefgh",
 "Content-Type: application/json"]
 )
+```
 
-to this:
 
+to this:
+```kotlin
 @Headers(
 "Authorization: token ghp_abcdefgh",
 "Content-Type: application/json"
 )
+```
+
 
 1.0.0-beta09
 ========================================
diff --git a/sandbox/build.gradle.kts b/sandbox/build.gradle.kts
index 50d9ff0ff..3ccde3ee1 100644
--- a/sandbox/build.gradle.kts
+++ b/sandbox/build.gradle.kts
@@ -56,7 +56,7 @@ kotlin {
             dependencies {
                 implementation("io.ktor:ktor-client-core-jvm:$ktorVersion")
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-rx3:1.6.4")
-                implementation("io.reactivex.rxjava3:rxjava:3.1.3")
+                implementation("io.reactivex.rxjava3:rxjava:3.1.5")
                 implementation("io.ktor:ktor-client-gson:$ktorVersion")
                 implementation("io.ktor:ktor-client-logging:$ktorVersion")