diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 31f8cc8c27970208d05e144e86b98f4550108644..32e6657a9c01e549d79d6afe4350fd507dd2d795 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -84,7 +84,7 @@ variables:
     - sed 1d -i requirements.txt # GAMBIT to remove pillow<3 
     - ./bootstrap-conda.sh ${CONDA_FOLDER} ${PYTHON_VER} ${CONDA_PREFIX}
     - source ${CONDA_FOLDER}/bin/activate ${CONDA_PREFIX}
-    - conda install --yes -c conda-forge -p ${CONDA_PREFIX} opencv==2.4.12 pillow==2.9.0
+    - conda install --yes -c conda-forge -p ${CONDA_PREFIX} opencv==2.4.12 pillow==2.9.0 jpeg=8d
     - pip install --use-wheel --no-index --pre dist/*.whl
   script:
     - cd ${CONDA_PREFIX}