diff --git a/acceptance-tests/Chart.yaml b/acceptance-tests/Chart.yaml
index 51a0085..33ce7fa 100644
--- a/acceptance-tests/Chart.yaml
+++ b/acceptance-tests/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.5.1
+version: 0.5.2
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/acceptance-tests/templates/prometheus-pm.yaml b/acceptance-tests/templates/prometheus-pm.yaml
index 38e933e..3ba7d59 100644
--- a/acceptance-tests/templates/prometheus-pm.yaml
+++ b/acceptance-tests/templates/prometheus-pm.yaml
@@ -9,7 +9,7 @@ spec:
   podMetricsEndpoints:
   - interval: {{ .Values.podMonitor.frequency }}
     path: {{ .Values.podMonitor.httpPath }}
-    port: {{ .Values.podMonitor.httpPort }}
+    port: {{ .Values.podMonitor.httpPort | quote }}
   selector:
     matchLabels:
       {{- with .Values.podMonitor.matchLabels }}