diff --git a/vars/makeHelmChart.groovy b/vars/makeHelmChart.groovy
index 2951190..86a4d0a 100644
--- a/vars/makeHelmChart.groovy
+++ b/vars/makeHelmChart.groovy
@@ -1,7 +1,7 @@
 def call(String chartPath, String appName, String version) {
     container('helm') {
         sh "sed -i 's/^version:.*/version: ${version}/' ${chartPath}/Chart.yaml"
-        sh "sed -i 's/^image:.*/image: localhost:31050/my-docker-repo/${appName}:${version}/' ${chartPath}/values.yaml"
+        sh "sed -i 's|^image:.*|image: localhost:31050/my-docker-repo/${appName}:${version}|' ${chartPath}/values.yaml"
         sh "helm package ${chartPath}"
         echo "Helm chart packaged successfully: ${chartPath}"
     }