diff --git a/ci/android.yml b/ci/android.yml
index 23f10f1..d03d182 100644
--- a/ci/android.yml
+++ b/ci/android.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: set up JDK 1.8
       uses: actions/setup-java@v1
       with:
diff --git a/ci/ant.yml b/ci/ant.yml
index d95d6b4..eb70532 100644
--- a/ci/ant.yml
+++ b/ci/ant.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up JDK 1.8
       uses: actions/setup-java@v1
       with:
diff --git a/ci/aws.yml b/ci/aws.yml
index 2477e88..374ff09 100644
--- a/ci/aws.yml
+++ b/ci/aws.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     - name: Configure AWS credentials
       uses: aws-actions/configure-aws-credentials@v1
diff --git a/ci/azure.yml b/ci/azure.yml
index 5899aa3..1e4c5b1 100644
--- a/ci/azure.yml
+++ b/ci/azure.yml
@@ -23,7 +23,7 @@ jobs:
     name: Build and Deploy
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Use Node.js ${{ env.NODE_VERSION }}
       uses: actions/setup-node@v1
       with:
diff --git a/ci/blank.yml b/ci/blank.yml
index 6bee778..317bc22 100644
--- a/ci/blank.yml
+++ b/ci/blank.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Run a one-line script
       run: echo Hello, world!
     - name: Run a multi-line script
diff --git a/ci/c-cpp.yml b/ci/c-cpp.yml
index 2ec6606..16c888d 100644
--- a/ci/c-cpp.yml
+++ b/ci/c-cpp.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: configure
       run: ./configure
     - name: make
diff --git a/ci/clojure.yml b/ci/clojure.yml
index 7932491..2ed34a4 100644
--- a/ci/clojure.yml
+++ b/ci/clojure.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Install dependencies
       run: lein deps
     - name: Run tests
diff --git a/ci/crystal.yml b/ci/crystal.yml
index 3f937eb..ea1f58c 100644
--- a/ci/crystal.yml
+++ b/ci/crystal.yml
@@ -11,7 +11,7 @@ jobs:
       image: crystallang/crystal
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Install dependencies
       run: shards install
     - name: Run tests
diff --git a/ci/dart.yml b/ci/dart.yml
index 2b99c64..74be049 100644
--- a/ci/dart.yml
+++ b/ci/dart.yml
@@ -11,7 +11,7 @@ jobs:
       image:  google/dart:latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Install dependencies
       run: pub get
     - name: Run tests
diff --git a/ci/docker-image.yml b/ci/docker-image.yml
index d0e70b8..904330b 100644
--- a/ci/docker-image.yml
+++ b/ci/docker-image.yml
@@ -9,6 +9,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Build the Docker image
       run: docker build . --file Dockerfile --tag my-image-name:$(date +%s)
diff --git a/ci/docker-push.yml b/ci/docker-push.yml
index 51a36f3..c7e9392 100644
--- a/ci/docker-push.yml
+++ b/ci/docker-push.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
       - name: Run tests
         run: |
@@ -45,7 +45,7 @@ jobs:
     if: github.event_name == 'push'
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
       - name: Build image
         run: docker build . --file Dockerfile --tag image
diff --git a/ci/dotnet-core.yml b/ci/dotnet-core.yml
index e04df52..3d11219 100644
--- a/ci/dotnet-core.yml
+++ b/ci/dotnet-core.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
diff --git a/ci/elixir.yml b/ci/elixir.yml
index eed27bc..0401caf 100644
--- a/ci/elixir.yml
+++ b/ci/elixir.yml
@@ -11,7 +11,7 @@ jobs:
       image: elixir:1.9.1-slim
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Install Dependencies
       run: |
         mix local.rebar --force
diff --git a/ci/erlang.yml b/ci/erlang.yml
index e67464c..0b570b9 100644
--- a/ci/erlang.yml
+++ b/ci/erlang.yml
@@ -12,7 +12,7 @@ jobs:
       image: erlang:22.0.7
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Compile
       run: rebar3 compile
     - name: Run tests
diff --git a/ci/gem-push.yml b/ci/gem-push.yml
index f5fb3b6..a635f2e 100644
--- a/ci/gem-push.yml
+++ b/ci/gem-push.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up Ruby 2.6
       uses: actions/setup-ruby@v1
       with:
diff --git a/ci/go.yml b/ci/go.yml
index 169022b..27e1c6e 100644
--- a/ci/go.yml
+++ b/ci/go.yml
@@ -14,7 +14,7 @@ jobs:
       id: go
 
     - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     - name: Get dependencies
       run: |
diff --git a/ci/google.yml b/ci/google.yml
index 69d6781..0211ad7 100644
--- a/ci/google.yml
+++ b/ci/google.yml
@@ -31,7 +31,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     # Setup gcloud CLI
     - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
diff --git a/ci/gradle.yml b/ci/gradle.yml
index dc24a2e..4443382 100644
--- a/ci/gradle.yml
+++ b/ci/gradle.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up JDK 1.8
       uses: actions/setup-java@v1
       with:
diff --git a/ci/haskell.yml b/ci/haskell.yml
index 2f9a0d1..3aa0933 100644
--- a/ci/haskell.yml
+++ b/ci/haskell.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - uses: actions/setup-haskell@v1
       with:
         ghc-version: '8.6.5'
diff --git a/ci/jekyll.yml b/ci/jekyll.yml
index 7820958..bcb881d 100644
--- a/ci/jekyll.yml
+++ b/ci/jekyll.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Build the site in the jekyll/builder container
       run: |
         docker run \
diff --git a/ci/laravel.yml b/ci/laravel.yml
index c3841eb..ad5d926 100644
--- a/ci/laravel.yml
+++ b/ci/laravel.yml
@@ -6,7 +6,7 @@ jobs:
   laravel-tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Copy .env
       run: php -r "file_exists('.env') || copy('.env.example', '.env');"
     - name: Install Dependencies
diff --git a/ci/maven.yml b/ci/maven.yml
index dbc347f..ee2c5eb 100644
--- a/ci/maven.yml
+++ b/ci/maven.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up JDK 1.8
       uses: actions/setup-java@v1
       with:
diff --git a/ci/node.js.yml b/ci/node.js.yml
index 08271a3..e72f5ac 100644
--- a/ci/node.js.yml
+++ b/ci/node.js.yml
@@ -12,7 +12,7 @@ jobs:
         node-version: [8.x, 10.x, 12.x]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
diff --git a/ci/npm-publish.yml b/ci/npm-publish.yml
index ed81431..0eede46 100644
--- a/ci/npm-publish.yml
+++ b/ci/npm-publish.yml
@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -19,7 +19,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -33,7 +33,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
diff --git a/ci/php.yml b/ci/php.yml
index 8e856b8..1eb9bf7 100644
--- a/ci/php.yml
+++ b/ci/php.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
 
     - name: Validate composer.json and composer.lock
       run: composer validate
diff --git a/ci/python-app.yml b/ci/python-app.yml
index 07a10be..4c81e5e 100644
--- a/ci/python-app.yml
+++ b/ci/python-app.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up Python 3.8
       uses: actions/setup-python@v1
       with:
diff --git a/ci/python-package.yml b/ci/python-package.yml
index d040060..92dc4fc 100644
--- a/ci/python-package.yml
+++ b/ci/python-package.yml
@@ -11,7 +11,7 @@ jobs:
         python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v1
       with:
diff --git a/ci/python-publish.yml b/ci/python-publish.yml
index 21f2f01..b143a53 100644
--- a/ci/python-publish.yml
+++ b/ci/python-publish.yml
@@ -8,7 +8,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up Python
       uses: actions/setup-python@v1
       with:
diff --git a/ci/ruby.yml b/ci/ruby.yml
index 7258d72..cb69ab4 100644
--- a/ci/ruby.yml
+++ b/ci/ruby.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up Ruby 2.6
       uses: actions/setup-ruby@v1
       with:
diff --git a/ci/rust.yml b/ci/rust.yml
index 9ca641b..00f2bf5 100644
--- a/ci/rust.yml
+++ b/ci/rust.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Build
       run: cargo build --verbose
     - name: Run tests
diff --git a/ci/scala.yml b/ci/scala.yml
index fbeee57..545ce18 100644
--- a/ci/scala.yml
+++ b/ci/scala.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up JDK 1.8
       uses: actions/setup-java@v1
       with:
diff --git a/ci/swift.yml b/ci/swift.yml
index 2e76632..9306888 100644
--- a/ci/swift.yml
+++ b/ci/swift.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: macOS-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Build
       run: swift build -v
     - name: Run tests