diff --git a/tests/tests.yml b/tests/tests.yml
index d796909..a31cb8b 100644
--- a/tests/tests.yml
+++ b/tests/tests.yml
@@ -16,3 +16,4 @@
     - virtualenv
     - python3-tox
     - python2-devel
+    - glibc-all-langpacks # for locale tests