diff --git a/build.gradle b/build.gradle
index ba99bada..48109dee 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@
 
 buildscript {
     ext.kotlin_version = '1.4.31'
-    ext.coroutines_version = "1.3.9"
+    ext.coroutines_version = "1.4.1"
 
     repositories {
         google()
diff --git a/geeksville-androidlib b/geeksville-androidlib
index 158f6f2d..49ac3e94 160000
--- a/geeksville-androidlib
+++ b/geeksville-androidlib
@@ -1 +1 @@
-Subproject commit 158f6f2dd5dfe81833ed035d54045d7b34394e51
+Subproject commit 49ac3e94f9302c3cb684aef9bc7b70a1ebb0d989