diff --git a/ci/django.yml b/ci/django.yml
index 6ed9db8..dbde266 100644
--- a/ci/django.yml
+++ b/ci/django.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.7, 3.8, 3.9]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/ci/node.js.yml b/ci/node.js.yml
index ce0cdcf..632c1a6 100644
--- a/ci/node.js.yml
+++ b/ci/node.js.yml
@@ -16,7 +16,8 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x]
+        node-version: [10.x, 12.x, 14.x, 15.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
     - uses: actions/checkout@v2
diff --git a/ci/python-app.yml b/ci/python-app.yml
index 3b3e6a6..f6ad69a 100644
--- a/ci/python-app.yml
+++ b/ci/python-app.yml
@@ -16,10 +16,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.8
+    - name: Set up Python 3.9
       uses: actions/setup-python@v2
       with:
-        python-version: 3.8
+        python-version: 3.9
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/ci/python-package.yml b/ci/python-package.yml
index d2278f2..c88f6ce 100644
--- a/ci/python-package.yml
+++ b/ci/python-package.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.5', '3.6', '3.7', '3.8']
+        python-version: [3.7, 3.8, 3.9]
 
     steps:
     - uses: actions/checkout@v2