diff --git a/build.gradle b/build.gradle
index c2ba9e718..beb1478a4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.7.10'
+    ext.kotlin_version = '1.9.21'
     repositories {
         google()
         mavenCentral()
diff --git a/onebusaway-android/build.gradle b/onebusaway-android/build.gradle
index 012c94b81..f62135f41 100644
--- a/onebusaway-android/build.gradle
+++ b/onebusaway-android/build.gradle
@@ -275,8 +275,8 @@ android {
     }
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility = 17
+        targetCompatibility = 17
     }
 
     testOptions {
@@ -369,9 +369,9 @@ dependencies {
     implementation "androidx.core:core-ktx:1.7.0"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     // RoomDB
-    implementation "androidx.room:room-runtime:2.5.0"
-    kapt "androidx.room:room-compiler:2.5.0"
-    implementation "androidx.room:room-ktx:2.5.0"
+    implementation "androidx.room:room-runtime:2.6.1"
+    kapt "androidx.room:room-compiler:2.6.1"
+    implementation "androidx.room:room-ktx:2.6.1"
 
 }