diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 91356ae1475b7a758b6549a154cac9c6027ce0be..b4cbbbd9098752406b78afd149ee4c9076aea3e0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,6 +7,7 @@ variables:
 pages:
   stage: deploy
   before_script:
+  - apt-get -y update && apt-get -y install po4a
   - pip install -r requirements.txt
   script:
   - make publish
@@ -21,6 +22,7 @@ pages:
 pages_staging:
   stage: test
   before_script:
+  - apt-get -y update && apt-get -y install po4a
   - pip install -r requirements.txt
   script:
   - make publish