diff --git a/.github/workflows/sphinxbuild.yml b/.github/workflows/sphinxbuild.yml
index 572b0edb1..380b493a6 100644
--- a/.github/workflows/sphinxbuild.yml
+++ b/.github/workflows/sphinxbuild.yml
@@ -12,6 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
     - uses: ammaraskar/sphinx-action@master
       with:
         docs-folder: "user_manual/"
@@ -29,6 +32,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
     - uses: ammaraskar/sphinx-action@master
       with:
         docs-folder: "user_manual/"
@@ -38,6 +44,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
     - uses: ammaraskar/sphinx-action@master
       with:
         docs-folder: "developer_manual/"
@@ -55,6 +64,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
     - uses: ammaraskar/sphinx-action@master
       with:
         docs-folder: "admin_manual/"