diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index d93e948..fe89221 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -37,7 +37,7 @@ jobs:
     steps:
       - name: Determine matrix
         id: generate_matrix
-        uses: coactions/dynamic-matrix@v1
+        uses: coactions/dynamic-matrix@v4
         with:
           min_python: "3.7"
           max_python: "3.12"