diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 533ec3428e..2f0f24d994 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -33,6 +33,8 @@ jobs:
 
       - name: Setup SMT solvers
         uses: keyproject/setup-smt@v0
+        with:
+          z3Version: 4.13.0
 
       - name: z3 version
         run: z3 --version