diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f2bddafc41c7a63044ef646e13fef1f5ef78b888..43405f905e1e2d32f5a6df74e95ca2d03d6630f0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -41,7 +41,7 @@ trigger-iris.dev:
   variables:
     STDPP_REPO: "iris/stdpp"
     IRIS_REPO: "iris/iris"
-    OPAM_PINS: "coq version 8.16.dev   git+https://gitlab.mpi-sws.org/$STDPP_REPO#$STDPP_REV   git+https://gitlab.mpi-sws.org/$IRIS_REPO#$IRIS_REV"
+    OPAM_PINS: "coq version $NIGHTLY_COQ   git+https://gitlab.mpi-sws.org/$STDPP_REPO#$STDPP_REV   git+https://gitlab.mpi-sws.org/$IRIS_REPO#$IRIS_REV"
   except:
   only:
   - triggers