diff --git a/Dockerfile b/Dockerfile
index bf5452de6..3ac291bc4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 #--------------------------------------
 # Image: base
 #--------------------------------------
-FROM ubuntu:20.04@sha256:d11cf985a3a0c1f20fa25bada66928d31a40615adf21e1bb8b298497505227c2
+FROM ubuntu:20.04@sha256:9101220a875cee98b016668342c489ff0674f247f6ca20dfc91b91c0f28581ae
 
 ARG APT_HTTP_PROXY