diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 71bf42dfb69b26d37060b4bda51e2f2da96c2a91..70b78b9cc3ae585cd4d5e7da61655193acf8d028 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -69,7 +69,7 @@ Python 3.5 Apple:
 
 Pylint:
   script:
-  - EXTRA_INSTALL="numpy sympy pexpect"
+  - EXTRA_INSTALL="numpy sympy symengine scipy pexpect"
   - py_version=3.6
   - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/prepare-and-run-pylint.sh
   - ". ./prepare-and-run-pylint.sh pymbolic test/test_*.py"