diff --git a/billing/build.gradle b/billing/build.gradle
index 04f7593..ebebb01 100644
--- a/billing/build.gradle
+++ b/billing/build.gradle
@@ -21,8 +21,8 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
     namespace 'ir.myket.billingclient'
     buildFeatures {
diff --git a/sample/build.gradle b/sample/build.gradle
index 55385ca..c0ee77d 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -31,8 +31,8 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
     namespace 'ir.myket.billingclient.sample'
     buildFeatures {