diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2bedd27..e5f5e23 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,8 +18,6 @@ jobs:
         # to specify exact versions.
         # Learn more: https://stackoverflow.com/a/78890086/7009800
         include:
-          - java-version: 11
-            android-clt-version: 9862592
           - java-version: 17
             android-clt-version: 11479570
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 533a5ee..1595235 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -18,12 +18,12 @@ plugins {
 
 allprojects {
     tasks.withType(JavaCompile::class.java) {
-        sourceCompatibility = "1.8"
-        targetCompatibility = "1.8"
+        sourceCompatibility = JavaVersion.VERSION_17.toString()
+        targetCompatibility = JavaVersion.VERSION_17.toString()
     }
     tasks.withType(KotlinCompile::class.java) {
         kotlinOptions {
-            jvmTarget = "1.8"
+            jvmTarget = JavaVersion.VERSION_17.toString()
             freeCompilerArgs += "-Xopt-in=kotlin.ExperimentalUnsignedTypes"
         }
     }