diff --git a/upgrade.sh b/upgrade.sh
index 8dd00e6..5d1fc1f 100755
--- a/upgrade.sh
+++ b/upgrade.sh
@@ -12,6 +12,6 @@ echo "Upgrading deployment $2 in namespace $1 ..."
 
 rancher kubectl \
     --namespace=$1 \
-    patch deployment $2 \
+    patch deployment.apps $2 \
     --type=strategic \
     -p '{"spec":{"template":{"spec":{"containers":[{"name":"'$2'","env":[{"name":"FORCE_RESTART_AT","value":"'$(date --utc -Iseconds)'"}]}]}}}}'