diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f664173..27bd87e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ test:smolensk15:
   image: smolensk15-dev
   before_script:
     - apt-get update
-    - apt-get -y --force-yes install git qttools5-dev-tools qttools5-dev
+    - apt-get -y --force-yes install git qttools5-dev-tools qttools5-dev doxygen
     - git submodule sync
     - git submodule update --init
   script:
@@ -15,7 +15,7 @@ test:bionic:
   image: bionic-dev
   before_script:
     - apt-get update
-    - apt-get -y --force-yes install git qttools5-dev-tools qttools5-dev
+    - apt-get -y --force-yes install git qttools5-dev-tools qttools5-dev doxygen python3-breathe python3-sphinx python3-sphinx-rtd-theme
     - git submodule sync
     - git submodule update --init
   script: