diff --git a/.github/workflows/build-debug.yml b/.github/workflows/build-debug.yml
index 78dda8e..8583dd6 100644
--- a/.github/workflows/build-debug.yml
+++ b/.github/workflows/build-debug.yml
@@ -28,10 +28,10 @@ jobs:
         with:
           submodules: true
 
-      - name: Set up Java 20
+      - name: Set up Java 19
         uses: actions/setup-java@v3
         with:
-          java-version: 20
+          java-version: 19
           distribution: 'temurin'
 
       - name: Setup Android SDK
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index b8ddc56..80507d8 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -288,8 +288,8 @@ android {
 
     compileOptions {
         isCoreLibraryDesugaringEnabled = true
-        sourceCompatibility = JavaVersion.VERSION_20
-        targetCompatibility = JavaVersion.VERSION_20
+        sourceCompatibility = JavaVersion.VERSION_19
+        targetCompatibility = JavaVersion.VERSION_19
     }
 
     lint {
@@ -493,6 +493,6 @@ android {
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(20))
+        languageVersion.set(JavaLanguageVersion.of(19))
     }
 }
diff --git a/build.gradle.kts b/build.gradle.kts
index 2529ec6..caab022 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -32,8 +32,8 @@ tasks.register("clean", Delete::class) {
 
 afterEvaluate {
     tasks.withType<JavaCompile>().configureEach {
-        sourceCompatibility = JavaVersion.VERSION_20.toString()
-        targetCompatibility = JavaVersion.VERSION_20.toString()
+        sourceCompatibility = JavaVersion.VERSION_19.toString()
+        targetCompatibility = JavaVersion.VERSION_19.toString()
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index fbd2b77..8707e8b 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-milestone-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-all.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists