diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 35f3fd3..60e0e12 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -58,6 +58,10 @@ jobs:
         shell: bash
         run: poetry config virtualenvs.in-project true
 
+      - name: Poetry lock for older poetry versions
+        shell: bash
+        run: poetry lock
+
       - name: Poetry check & build
         shell: bash
         run: poetry check && poetry build
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 90be723..0e3cd0e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,6 +35,10 @@ jobs:
         shell: bash
         run: poetry config virtualenvs.in-project true
 
+      - name: Poetry lock for older poetry versions
+        shell: bash
+        run: poetry lock
+
       - name: Poetry check & build
         shell: bash
         run: poetry check && poetry build