diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3ebaa08c7c656fb76743479b638a9f09361273d9..ca6a53a1ee75efe20341cf7f86ee52c279cc9825 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,4 +3,12 @@ build:
   tags:
     - x86_64-linux
   script:
-    - nix build
+    - nix-shell ./. --argstr version "$VERSION" --run 'bash -c "\$GHC --version"'
+  parallel:
+    matrix:
+      - VERSION: "8.10"
+      - VERSION: "9.0"
+      - VERSION: "9.2"
+      - VERSION: "9.4"
+      - VERSION: "9.6"
+