diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a53092..38104d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.7.4 (2021-06-17)
+
+* (Fix) prometheus bind port
+
 ## 0.7.3 (2021-06-10)
 
 * (Fix) apiVersion checkup in ingress config
diff --git a/imgproxy/Chart.yaml b/imgproxy/Chart.yaml
index 70512cc..548060a 100644
--- a/imgproxy/Chart.yaml
+++ b/imgproxy/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v1
 description: A fast and secure standalone server for resizing and converting remote images. The main principles of imgproxy are simplicity, speed, and security.
 name: imgproxy
 icon: https://cdn.rawgit.com/imgproxy/imgproxy/master/logo.svg
-version: 0.7.3
+version: 0.7.4
 appVersion: 2.15.0
 keywords:
 - imgproxy
diff --git a/imgproxy/templates/env-secret.yaml b/imgproxy/templates/env-secret.yaml
index 49196c5..71b741f 100644
--- a/imgproxy/templates/env-secret.yaml
+++ b/imgproxy/templates/env-secret.yaml
@@ -276,7 +276,7 @@ data: {{- /* https://docs.imgproxy.net/#/configuration?id=url-signature */}}
   {{- /* https://docs.imgproxy.net/#/configuration?id=prometheus-metrics */}}
   {{- with .Values.features.prometheus }}
   {{- if .enabled }}
-  IMGPROXY_PROMETHEUS_BIND: ":8081"
+  IMGPROXY_PROMETHEUS_BIND: {{ ":8081" | b64enc | quote }}
   {{- if .namespace }}
   IMGPROXY_PROMETHEUS_NAMESPACE: {{ .namespace | toString | b64enc | quote }}
   {{- end }}