diff --git a/config/packages.yml b/config/packages.yml
index 368b6254b..0ef235c81 100644
--- a/config/packages.yml
+++ b/config/packages.yml
@@ -51,13 +51,8 @@
 # example.
 
 acquia/acquia_cms:
-  core_matrix:
-    10.1.x:
-      version: ~
-      version_dev: ~
-    '*':
-      version: 2.x
-      version_dev: 2.x-dev
+  version: 2.x
+  version_dev: 2.x-dev
 
 drupal/acquia_connector:
   version: 4.x