diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 297558bf09f37485937402df22f79f44bc7c4b99..1f8f374bd663c46f3e45f6b0f4bdade8b3a3d3ff 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ before_script:
   - export APT_CACHE_DIR=`pwd`/apt-cache && mkdir -pv $APT_CACHE_DIR
   - apt-get update -yq && apt-get -o dir::cache::archives="$APT_CACHE_DIR" install -y cmake libfftw3-dev liblapack-dev
   - apt-get -o dir::cache::archives="$APT_CACHE_DIR" install -y python3.5 python3.5-dev python3-pip python3-tk
-  - apt-get -o dir::cache::archives="$APT_CACHE_DIR" install -y matplotlib
+  - apt-get -o dir::cache::archives="$APT_CACHE_DIR" install -y python3-matplotlib
   - pip3 install --upgrade pip
   - pip3 install scipy nose coverage pytest pytest-cov Sphinx sphinxcontrib-bibtex
   - pip3 list