diff --git a/.github/workflows/check-lint.yml b/.github/workflows/check-lint.yml
index 495a4ef..1adf883 100644
--- a/.github/workflows/check-lint.yml
+++ b/.github/workflows/check-lint.yml
@@ -23,13 +23,13 @@ jobs:
         id: setup-python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.10'
+          python-version: '3.10.6'
       #----------------------------------------------
       #  -----  install & configure poetry  -----
       #----------------------------------------------
       - name: Install poetry
         env:  # Keep in sync with `POETRY_VERSION` in `Dockerfile`
-          POETRY_VERSION: "1.1.14"
+          POETRY_VERSION: "1.2.0"
         run: |
           curl -sSL "https://install.python-poetry.org" | python -
           # Adding `poetry` to `$PATH`:
diff --git a/.github/workflows/poetry-test.yml b/.github/workflows/poetry-test.yml
index 3d598ff..50ea418 100644
--- a/.github/workflows/poetry-test.yml
+++ b/.github/workflows/poetry-test.yml
@@ -23,13 +23,13 @@ jobs:
         id: setup-python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.10'
+          python-version: '3.10.6'
       #----------------------------------------------
       #  -----  install & configure poetry  -----
       #----------------------------------------------
       - name: Install poetry
         env:  # Keep in sync with `POETRY_VERSION` in `Dockerfile`
-          POETRY_VERSION: "1.1.14"
+          POETRY_VERSION: "1.2.0"
         run: |
           curl -sSL "https://install.python-poetry.org" | python -
           # Adding `poetry` to `$PATH`: