diff --git a/Dockerfile b/Dockerfile
index fa04ba5..7d0b694 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
-FROM python:3.12-slim
+FROM python:3.11-slim
 
 ENV VERSION_CT=0.9.0 \
-    VERSION_HELM=3.14.2 \
-    CLOUD_SDK_VERSION=465.0.0
+    VERSION_HELM=3.12.3 \
+    CLOUD_SDK_VERSION=464.0.0
 
 ENV PATH /google-cloud-sdk/bin:$PATH