diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index a1be74e..8954dd4 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -26,12 +26,16 @@ jobs:
       - name: Install hyperscan
         run: sudo apt-get install libhyperscan-dev
 
+      - name: Get full Python version
+        id: full-python-version
+        run: echo "version=$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")" >> $GITHUB_OUTPUT
+
       - name: Load cached venv
         id: cached-poetry-dependencies
         uses: actions/cache@v3
         with:
           path: .venv
-          key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock')}}
+          key: venv-${{ runner.os }}-cache-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock')}}-v20210414
 
       - name: Install dependencies
         run: poetry install
@@ -72,12 +76,16 @@ jobs:
           virtualenvs-create: true
           virtualenvs-in-project: true
 
+      - name: Get full Python version
+        id: full-python-version
+        run: echo "version=$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")" >> $GITHUB_OUTPUT
+
       - name: Load cached venv
         id: cached-poetry-dependencies
         uses: actions/cache@v3
         with:
           path: .venv
-          key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock')}}
+          key: venv-${{ runner.os }}-cache-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock')}}-v20210414
 
       - name: Install dependencies
         run: poetry install
diff --git a/.github/workflows/pdoc.yml b/.github/workflows/pdoc.yml
index 54097b2..af28f60 100644
--- a/.github/workflows/pdoc.yml
+++ b/.github/workflows/pdoc.yml
@@ -23,12 +23,16 @@ jobs:
       - name: Install hyperscan
         run: sudo apt-get install libhyperscan-dev
 
+      - name: Get full Python version
+        id: full-python-version
+        run: echo "version=$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")" >> $GITHUB_OUTPUT
+
       - name: Load cached venv
         id: cached-poetry-dependencies
         uses: actions/cache@v3
         with:
           path: .venv
-          key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}-v2021-09-23
+          key: venv-${{ runner.os }}-cache-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock')}}-v20210414
 
       - name: Install dependencies
         run: poetry install
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 586837c..3f9638a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -32,12 +32,16 @@ jobs:
       - name: Install hyperscan
         run: sudo apt-get install libhyperscan-dev
 
+      - name: Get full Python version
+        id: full-python-version
+        run: echo "version=$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")" >> $GITHUB_OUTPUT
+
       - name: Load cached venv
         id: cached-poetry-dependencies
         uses: actions/cache@v3
         with:
           path: .venv
-          key: venv-${{ runner.os }}-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
+          key: venv-${{ runner.os }}-cache-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock')}}-v20210414
 
       - name: Install dependencies
         run: poetry install