diff --git a/Scripts/Build/BuildDarwin.sh b/Scripts/Build/BuildDarwin.sh
index 222765f..6866fdb 100755
--- a/Scripts/Build/BuildDarwin.sh
+++ b/Scripts/Build/BuildDarwin.sh
@@ -21,6 +21,8 @@ buildApplication() {
 
       "${libQtPath}/bin/macdeployqt" "${productBuildPath}/bundle/Synergy.app" || exit 1
 
+      codesign --force --deep --sign - "${productBuildPath}/bundle/Synergy.app" || exit 1
+
       rsync -av --delete "${productBuildPath}/bundle/Synergy.app/" "${binariesPath}/${productName}.app/" || exit 1
 
    popd
diff --git a/Synergy-Core b/Synergy-Core
index 400d879..455c59b 160000
--- a/Synergy-Core
+++ b/Synergy-Core
@@ -1 +1 @@
-Subproject commit 400d87936d1939d80f486dcbe6e2f2bcc4d4f3c0
+Subproject commit 455c59b4f0705a4fd1831781a8f7b25cf297381d