diff --git a/.github/workflows/python_ci.yml b/.github/workflows/python_ci.yml
index 956ee95..84c943d 100644
--- a/.github/workflows/python_ci.yml
+++ b/.github/workflows/python_ci.yml
@@ -39,7 +39,7 @@ jobs:
           - {python-version: "pypy-3.6", testenvs: "pypy36-flake8{4,5}", experimental: False}
           - {python-version: "pypy-3.7", testenvs: "pypy37-flake8{4,5},build", experimental: False}
           - {python-version: "pypy-3.8", testenvs: "pypy38-flake8{4,5,6,7},build", experimental: False}
-          - {python-version: "pypy-3.9", testenvs: "pypy39-flake8{4,5,6,7},build", experimental: True}
+          - {python-version: "pypy-3.9-v7.3.15", testenvs: "pypy39-flake8{4,5,6,7},build", experimental: True}
 
     steps:
       - name: Checkout 🛎️