diff --git a/ci/android.yml b/ci/android.yml
index 86f5781..c24bdd9 100644
--- a/ci/android.yml
+++ b/ci/android.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: set up JDK 1.8
-      uses: actions/setup-java@master
+      uses: actions/setup-java@v1
       with:
         version: 1.8
 
diff --git a/ci/ant.yml b/ci/ant.yml
index 4c6e4c2..2461b6d 100644
--- a/ci/ant.yml
+++ b/ci/ant.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Set up JDK 1.8
-      uses: actions/setup-java@master
+      uses: actions/setup-java@v1
       with:
         version: 1.8
 
diff --git a/ci/asp.net-core.yml b/ci/asp.net-core.yml
index 355e741..90a4098 100644
--- a/ci/asp.net-core.yml
+++ b/ci/asp.net-core.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
     
     - name: Setup .NET Core
-      uses: actions/setup-dotnet@master
+      uses: actions/setup-dotnet@v1
       with:
         version: 2.2.108
 
diff --git a/ci/go.yml b/ci/go.yml
index f560308..1194afa 100644
--- a/ci/go.yml
+++ b/ci/go.yml
@@ -8,7 +8,7 @@ jobs:
     steps:
 
     - name: Set up Go 1.12
-      uses: actions/setup-go@master
+      uses: actions/setup-go@v1
       with:
         version: 1.12
       id: go
diff --git a/ci/gradle.yml b/ci/gradle.yml
index 1694bbe..ad7a7a2 100644
--- a/ci/gradle.yml
+++ b/ci/gradle.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Set up JDK 1.8
-      uses: actions/setup-java@master
+      uses: actions/setup-java@v1
       with:
         version: 1.8
 
diff --git a/ci/maven.yml b/ci/maven.yml
index 33092aa..0f5dacb 100644
--- a/ci/maven.yml
+++ b/ci/maven.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Set up JDK 1.8
-      uses: actions/setup-java@master
+      uses: actions/setup-java@v1
       with:
         version: 1.8
 
diff --git a/ci/node.js.yml b/ci/node.js.yml
index 4c353b4..a4dc0b9 100644
--- a/ci/node.js.yml
+++ b/ci/node.js.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Use Node.js 10.x
-      uses: actions/setup-node@master
+      uses: actions/setup-node@v1
       with:
         version: 10.x
 
diff --git a/ci/python-django.yml b/ci/python-django.yml
index dd4703b..598a161 100644
--- a/ci/python-django.yml
+++ b/ci/python-django.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Set up Python 3.6
-      uses: actions/setup-python@master
+      uses: actions/setup-python@v1
       with:
         version: 3.6
 
diff --git a/ci/python-package.yml b/ci/python-package.yml
index 711eb8f..2db2b9f 100644
--- a/ci/python-package.yml
+++ b/ci/python-package.yml
@@ -16,7 +16,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@master
+      uses: actions/setup-python@v1
       with:
         version: ${{ matrix.python-version }}
 
diff --git a/ci/ruby.yml b/ci/ruby.yml
index d7b9f4c..d042262 100644
--- a/ci/ruby.yml
+++ b/ci/ruby.yml
@@ -10,7 +10,7 @@ jobs:
     - uses: actions/checkout@master
 
     - name: Set up Ruby 2.6
-      uses: actions/setup-ruby@master
+      uses: actions/setup-ruby@v1
       with:
         version: 2.6.x
 
diff --git a/ci/rust.yml b/ci/rust.yml
index 4ad3f8c..e90e607 100644
--- a/ci/rust.yml
+++ b/ci/rust.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v1
 
     - name: Build
       run: cargo build --verbose