diff --git a/.github/workflows/java-ci.yml b/.github/workflows/java-ci.yml
index 43c3c46..d0294d0 100644
--- a/.github/workflows/java-ci.yml
+++ b/.github/workflows/java-ci.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java-versions: [8, 11, 17, 19 ]
+        java-versions: [11, 17, 19 ]
       fail-fast: false
     steps:
     - uses: actions/checkout@v4
diff --git a/build.gradle b/build.gradle
index 2b19be7..7e2293b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -24,6 +24,9 @@ plugins {
 group = 'com.configcat'
 version = '1.1.1'
 
+sourceCompatibility = JavaVersion.VERSION_1_8
+targetCompatibility = JavaVersion.VERSION_1_8
+
 repositories {
     mavenCentral()
 }
@@ -44,10 +47,6 @@ if(hasProperty('target') && target == 'android') {
             minSdkVersion 14
             targetSdkVersion 25
         }
-        compileOptions {
-            sourceCompatibility JavaVersion.VERSION_1_8
-            targetCompatibility JavaVersion.VERSION_1_8
-        }
 
         // Rename the aar correctly
         libraryVariants.all { variant ->