diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4df98b30..6694536f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,7 +9,7 @@ version: 2
 # Templates
 defaults: &defaults
   machine:
-    image: ubuntu-2004:202111-02
+    image: default
   resource_class: large
   working_directory: ~/fun
 
diff --git a/.circleci/src/config.tpl b/.circleci/src/config.tpl
index b2648415..2d94c03c 100644
--- a/.circleci/src/config.tpl
+++ b/.circleci/src/config.tpl
@@ -5,7 +5,7 @@ version: 2
 # Templates
 defaults: &defaults
   machine:
-    image: ubuntu-2004:202111-02
+    image: default
   resource_class: large
   working_directory: ~/fun