diff --git a/androidApp/build.gradle.kts b/androidApp/build.gradle.kts
index f333042..b230fda 100644
--- a/androidApp/build.gradle.kts
+++ b/androidApp/build.gradle.kts
@@ -57,13 +57,13 @@ android {
     compileOptions {
         isCoreLibraryDesugaringEnabled = true
         // Flag to enable support for the new language APIs
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
     }
 
     // For Kotlin projects
     kotlinOptions {
-        jvmTarget = "17"
+        jvmTarget = "11"
     }
     compileSdk = 33
     buildToolsVersion = "33.0.0"
diff --git a/shared/build.gradle.kts b/shared/build.gradle.kts
index 46219f7..2188c38 100644
--- a/shared/build.gradle.kts
+++ b/shared/build.gradle.kts
@@ -17,6 +17,7 @@ plugins {
 
 kotlin {
     androidTarget()
+    jvmToolchain(11)
 
     listOf(
         iosX64(),
@@ -108,8 +109,8 @@ android {
         minSdk = 21
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
     }
     namespace = "bou.amine.apps.readerforselfossv2"
 }