diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c79bd6b832362c2b907f17b02dda035439fa5aa1..b80625cf855e9ac8c7c9a72d19b6675e47f355de 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -25,6 +25,7 @@ docstyle:
 test:
   stage: tests
   before_script:
+    - apt-get update
     - apt-get install -y language-pack-pl-base
     - dpkg-reconfigure locales
   script: