diff --git a/.github/workflows/ci-pkg-install.yml b/.github/workflows/ci-pkg-install.yml
index 20530be8b0..67a9b9f21b 100644
--- a/.github/workflows/ci-pkg-install.yml
+++ b/.github/workflows/ci-pkg-install.yml
@@ -115,7 +115,7 @@ jobs:
           done
       - name: Install pytest doctest extension
         run: |
-          pip install -q "pytest-doctestplus>=0.9.0"
+          pip install -q -r requirements/doctests.txt
           pip list
 
       - name: DocTest package
diff --git a/requirements/doctests.txt b/requirements/doctests.txt
new file mode 100644
index 0000000000..703f221660
--- /dev/null
+++ b/requirements/doctests.txt
@@ -0,0 +1,2 @@
+pytest ==7.4.0
+pytest-doctestplus ==1.0.0