diff --git a/app/build.gradle b/app/build.gradle
index 2cf6bd08..faa6b981 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -151,7 +151,7 @@ dependencies {
     implementation 'com.google.android.gms:play-services-location:17.0.0'
 
     // For Google Sign-In (owner name accesss)
-    implementation 'com.google.android.gms:play-services-auth:18.0.0'
+    implementation 'com.google.android.gms:play-services-auth:18.1.0'
 
     // Add the Firebase SDK for Crashlytics.
     implementation 'com.google.firebase:firebase-crashlytics:17.1.1'
diff --git a/geeksville-androidlib b/geeksville-androidlib
index 3cbda173..629a5b16 160000
--- a/geeksville-androidlib
+++ b/geeksville-androidlib
@@ -1 +1 @@
-Subproject commit 3cbda1733e7c9b1c713f5e8c438cde3e5032026f
+Subproject commit 629a5b1621d1e79772ddf00290da1edec3a74e10