diff --git a/tests/twig_tweak_test/twig_tweak_test.info.yml b/tests/twig_tweak_test/twig_tweak_test.info.yml
index 4f2cc7d..d7f8b11 100644
--- a/tests/twig_tweak_test/twig_tweak_test.info.yml
+++ b/tests/twig_tweak_test/twig_tweak_test.info.yml
@@ -3,6 +3,7 @@ type: module
 description: Support module for Twig tweak testing.
 package: Testing
 core: 8.x
+core_version_requirement: ^8 || ^9
 dependencies:
   - drupal:system (>= 8.7.0)
   - drupal:node
diff --git a/twig_tweak.info.yml b/twig_tweak.info.yml
index bb5ef9b..e0dc5a6 100644
--- a/twig_tweak.info.yml
+++ b/twig_tweak.info.yml
@@ -2,5 +2,6 @@ name: Twig Tweak
 type: module
 description: Provides some extra Twig functions and filters.
 core: 8.x
+core_version_requirement: ^8 || ^9
 dependencies:
   - drupal:system (>=8.7)