diff --git a/artifacts/loadtester/deployment.yaml b/artifacts/loadtester/deployment.yaml
index f4a44620..b5e61e1d 100644
--- a/artifacts/loadtester/deployment.yaml
+++ b/artifacts/loadtester/deployment.yaml
@@ -17,7 +17,7 @@ spec:
     spec:
       containers:
         - name: loadtester
-          image: weaveworks/flagger-loadtester:0.3.0
+          image: weaveworks/flagger-loadtester:0.4.0
           imagePullPolicy: IfNotPresent
           ports:
             - name: http