diff --git a/.github/workflows/lint-python.yml b/.github/workflows/lint-python.yml
index e60f9c6e..17da1fca 100644
--- a/.github/workflows/lint-python.yml
+++ b/.github/workflows/lint-python.yml
@@ -35,7 +35,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
-          python-version: '3.8.5'
+          python-version: '3.8.6'
 
       - name: Install flake8
         run: |
diff --git a/.github/workflows/test-python.yml b/.github/workflows/test-python.yml
index 46d3f893..a2658145 100644
--- a/.github/workflows/test-python.yml
+++ b/.github/workflows/test-python.yml
@@ -40,7 +40,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
-          python-version: '3.8.5'
+          python-version: '3.8.6'
 
       - name: Install dependencies
         run: |
diff --git a/Dockerfile b/Dockerfile
index 54d814e9..45164514 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.8.5
+FROM python:3.8.6
 
 # Copies your code file from your action repository to the filesystem path `/` of the container
 COPY compilesketches /compilesketches