diff --git a/firestore/app/build.gradle.kts b/firestore/app/build.gradle.kts
index e839c95ec..06256c03a 100644
--- a/firestore/app/build.gradle.kts
+++ b/firestore/app/build.gradle.kts
@@ -50,7 +50,7 @@ dependencies {
 
     // Firebase / Play Services
     implementation("com.google.firebase:firebase-auth")
-    implementation("com.google.android.gms:play-services-auth:21.0.0")
+    implementation("com.google.android.gms:play-services-auth:21.1.0")
     implementation("com.google.firebase:firebase-functions")
 
     // GeoFire (for Geoqueries solution)
diff --git a/messaging/app/build.gradle.kts b/messaging/app/build.gradle.kts
index 4f11debbb..089ce40ec 100644
--- a/messaging/app/build.gradle.kts
+++ b/messaging/app/build.gradle.kts
@@ -51,7 +51,7 @@ dependencies {
     // See: https://firebase.google.com/docs/cloud-messaging/manage-tokens
     implementation("com.google.firebase:firebase-firestore")
 
-    implementation("com.google.android.gms:play-services-auth:21.0.0")
+    implementation("com.google.android.gms:play-services-auth:21.1.0")
     implementation("androidx.work:work-runtime-ktx:2.9.0")
     implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0")
 }