diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9aeee7ee0e638158ee02622ff097ea43aa8b8c96..c0eaf0b449e372c7769bc55c150487c046201286 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -255,7 +255,7 @@
 #
 Pylint:
   script:
-  - EXTRA_INSTALL="pybind11 numpy mako matplotlib"
+  - EXTRA_INSTALL="pybind11 numpy mako matplotlib PyOpenGl IPython"
   - py_version=3.6
   # After installation, PyOpenCL cannot be used from the source directory due
   # to package shadowing. To work around this, build in editable mode so there
@@ -270,7 +270,7 @@ Pylint:
 
 Documentation:
   script:
-  - EXTRA_INSTALL="pybind11 numpy mako"
+  - EXTRA_INSTALL="pybind11 numpy mako matplotlib"
   - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/build-docs.sh
   - ". ./build-docs.sh"
   tags: