diff --git a/.gitea/workflows/android.yml b/.gitea/workflows/android.yml
index 00ef7ce..5a7eca4 100644
--- a/.gitea/workflows/android.yml
+++ b/.gitea/workflows/android.yml
@@ -15,12 +15,21 @@ jobs:
       - name: Setup JDK
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
 
       - name: Setup Android SDK
         uses: android-actions/setup-android@v2
 
+      - name: Setup Keystore
+        run: |
+          echo "${{ secrets.ANDROIDKEYSTOREBASE64 }}" | base64 -d > helldivers.keystore
+        env:
+          ANDROIDKEYSTOREPATH: helldivers.keystore
+          ANDROIDKEYSTOREPASS: ${{ secrets.ANDROIDKEYSTOREPASS }}
+          ANDROIDKEYALIAS: ${{ secrets.ANDROIDKEYALIAS }}
+          ANDROIDKEYPASS: ${{ secrets.ANDROIDKEYPASS }}
+
       - name: Build with Gradle
         run: |
           chmod +x ./gradlew
diff --git a/app/build.gradle b/app/build.gradle
index 1f970da..5a58293 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,8 +15,18 @@ android {
         multiDexEnabled true
     }
 
+    signingConfigs {
+        release {
+            storeFile file(System.getenv("ANDROIDKEYSTOREPATH") ?: "helldivers.keystore")
+            storePassword System.getenv("ANDROIDKEYSTOREPASS") ?: "HelldiversPorLaSuPerTierraYKevinTambien"
+            keyAlias System.getenv("ANDROIDKEYALIAS") ?: "helldivers"
+            keyPassword System.getenv("ANDROIDKEYPASS") ?: "HelldiversPorLaSuPerTierraYKevinTambien"
+        }
+    }
+
     buildTypes {
         release {
+            signingConfig signingConfigs.release
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
             multiDexEnabled true
@@ -27,14 +37,14 @@ android {
     }
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_17
-        targetCompatibility JavaVersion.VERSION_17
+        sourceCompatibility JavaVersion.VERSION_21
+        targetCompatibility JavaVersion.VERSION_21
         coreLibraryDesugaringEnabled true
     }
 
     java {
         toolchain {
-            languageVersion = JavaLanguageVersion.of(17)
+            languageVersion = JavaLanguageVersion.of(21)
         }
     }