diff --git a/linphone-app/src/app/main.cpp b/linphone-app/src/app/main.cpp
index 94fa073ef..dd63d07f9 100644
--- a/linphone-app/src/app/main.cpp
+++ b/linphone-app/src/app/main.cpp
@@ -29,6 +29,9 @@
 // =============================================================================
 
 int main (int argc, char *argv[]) {
+#ifdef __APPLE__
+	qputenv("QT_ENABLE_GLYPH_CACHE_WORKAROUND", "1");	// On Mac, set this workaround to avoid glitches on M1, because of https://bugreports.qt.io/browse/QTBUG-89379
+#endif
   AppController controller(argc, argv);
 #ifdef QT_QML_DEBUG
   QQmlDebuggingEnabler enabler;
diff --git a/linphone-sdk b/linphone-sdk
index 39e64b4d4..6e2b508e4 160000
--- a/linphone-sdk
+++ b/linphone-sdk
@@ -1 +1 @@
-Subproject commit 39e64b4d48e729744c207da9c9471eec697525dd
+Subproject commit 6e2b508e404b95d04439d2f76f0d24b36fb911d2