diff --git a/charts/agh2/templates/captain/captain-minio-secret.yml b/charts/agh2/templates/captain/captain-minio-secret.yml
index b5c33384..e0de3acd 100644
--- a/charts/agh2/templates/captain/captain-minio-secret.yml
+++ b/charts/agh2/templates/captain/captain-minio-secret.yml
@@ -20,6 +20,6 @@ stringData:
                 "prefix" .Values.captain.secret.minio.secretName
             )
         )
-    ) | quote
+    ) | substr 0 39 | quote
   }}
 {{- end }}
diff --git a/charts/agh2/templates/core/core-minio-secret.yml b/charts/agh2/templates/core/core-minio-secret.yml
index 779b16cc..9b379e09 100644
--- a/charts/agh2/templates/core/core-minio-secret.yml
+++ b/charts/agh2/templates/core/core-minio-secret.yml
@@ -20,6 +20,6 @@ stringData:
                 "prefix" .Values.core.secret.minio.secretName
             )
         )
-    ) | quote
+    ) | substr 0 39 | quote
   }}
 {{- end }}