diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index 2a647f3f..e21c47dc 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -46,11 +46,11 @@ jobs:
         key: ${{ runner.os }}-${{ hashFiles('poetry.lock') }}-${{ matrix.python-version }}-v2
 
     - name: Install dependencies
-      if: ${{ matrix.python-version != 3.10-dev }}
+      if: ${{ matrix.python-version != '3.10-dev' }}
       run: pip install poetry
 
     - name: Install dependencies (Prerelease)
-      if: ${{ matrix.python-version == 3.10-dev }}
+      if: ${{ matrix.python-version == '3.10-dev' }}
       run: pip install poetry==1.2.0a1
 
     - name: Configure poetry