diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 028b535b366dc2b694c202f3a0ac7c83c6c68f8c..7c07058b63ae6bde2d6562aa6933ad5ef7871f10 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,7 @@
 Python 2.7:
   script:
   - py_version=2.7
+  - export EXTRA_INSTALL="numpy"
   - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/build-and-test-py-project.sh
   - ". ./build-and-test-py-project.sh"
   tags:
@@ -11,6 +12,7 @@ Python 2.7:
 Python 3.5:
   script:
   - py_version=3.5
+  - export EXTRA_INSTALL="numpy"
   - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/build-and-test-py-project.sh
   - ". ./build-and-test-py-project.sh"
   tags: