diff --git a/kubernetes/helm/openslice/values.yaml b/kubernetes/helm/openslice/values.yaml
index 881a5e6d55f75340491d44f822c7b3b8ec2e7dc9..b18b1d29792c0ff1e2e2bf696c8040868af8087d 100644
--- a/kubernetes/helm/openslice/values.yaml
+++ b/kubernetes/helm/openslice/values.yaml
@@ -14,7 +14,7 @@ image:
     repository: yuzutech/kroki-blockdiag
     pullPolicy: Always
     # Overrides the image tag whose default is the chart appVersion.
-    tag: "latest"
+    tag: "0.18.0"
   bugzilla:
     repository: labs.etsi.org:5050/osl/code/org.etsi.osl.bugzilla
     pullPolicy: Always
@@ -34,7 +34,7 @@ image:
     repository: yuzutech/kroki
     pullPolicy: Always
     # Overrides the image tag whose default is the chart appVersion.
-    tag: "latest"
+    tag: "0.18.0"
   manoclient:
     repository: labs.etsi.org:5050/osl/code/org.etsi.osl.mano
     pullPolicy: Always