diff --git a/environments/sandbox-oci/cert-manager/Chart.yaml b/environments/sandbox-oci/cert-manager/Chart.yaml
index 6685674..b6f41d0 100644
--- a/environments/sandbox-oci/cert-manager/Chart.yaml
+++ b/environments/sandbox-oci/cert-manager/Chart.yaml
@@ -26,4 +26,4 @@ appVersion: "1.0"
 dependencies:
   - name: cert-manager
     repository: https://charts.jetstack.io
-    version: v1.19.4
+    version: v1.20.0