diff --git a/.github/workflows/blackisort.yml b/.github/workflows/blackisort.yml
index 04f6cdd8..aca4a853 100644
--- a/.github/workflows/blackisort.yml
+++ b/.github/workflows/blackisort.yml
@@ -13,7 +13,7 @@ jobs:
         uses: psf/black@stable
         with:
           options: "--check --diff --line-length 79"
-          version: "~= 23.0"
+          version: "23.3.0"
       # https://pycqa.github.io/isort/docs/configuration/github_action.html
       - name: running isort
         uses: jamescurtin/isort-action@master