diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c165f112..1353e72f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,6 +14,7 @@ py35-wheel:
   stage: dist
   image: python:3.5-alpine
   script:
+    - apk update && apk add cmake
     - pip install --upgrade pip setuptools wheel
     - python setup.py bdist_wheel
   artifacts:
@@ -24,6 +25,7 @@ py36-wheel:
   stage: dist
   image: python:3.6-alpine
   script:
+    - apk update && apk add cmake
     - pip install --upgrade pip setuptools wheel
     - python setup.py bdist_wheel
   artifacts:
@@ -34,6 +36,7 @@ py37-wheel:
   stage: dist
   image: python:3.7-alpine
   script:
+    - apk update && apk add cmake
     - pip install --upgrade pip setuptools wheel
     - python setup.py bdist_wheel
   artifacts: