diff --git a/.github/actions/setvars/action.yml b/.github/actions/setvars/action.yml
new file mode 100644
index 00000000..ee0cf98b
--- /dev/null
+++ b/.github/actions/setvars/action.yml
@@ -0,0 +1,13 @@
+name: 'Set environment variables'
+description: 'Configures environment variables for a workflow'
+inputs:
+  varFilePath:
+    description: 'File path to variable file or directory. Defaults to ./.github/variables/* if none specified and runs against each file in that directory.'
+    required: false
+    default: ./.github/variables/*
+runs:
+  using: "composite"
+  steps:
+    - run: |
+        sed "" ${{ inputs.varFilePath }} >> $GITHUB_ENV
+      shell: bash
diff --git a/.github/variables/unity.env b/.github/variables/unity.env
new file mode 100644
index 00000000..9c625960
--- /dev/null
+++ b/.github/variables/unity.env
@@ -0,0 +1,2 @@
+UNITY_HASH=577897200b8b
+UNITY_FULL_VERSION=2021.3.20f1
diff --git a/.github/workflows/ci-linux.yml b/.github/workflows/ci-linux.yml
index 6f1e40c0..485de0e2 100644
--- a/.github/workflows/ci-linux.yml
+++ b/.github/workflows/ci-linux.yml
@@ -9,11 +9,7 @@ on:
     branches:
     - main
     - release/*
-
-env:
-  UNITY_HASH: 4016570cf34f
-  UNITY_FULL_VERSION: 2021.3.16f1
-  
+ 
 jobs:
   linux:
     runs-on: ubuntu-latest
@@ -21,6 +17,11 @@ jobs:
     steps:
     - name: Checkout 
       uses: actions/checkout@v1
+      
+    - name: Set Environment Variables
+      uses: ./.github/actions/setvars
+      with:
+        varFilePath: ./.github/variables/unity.env
 
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
diff --git a/.github/workflows/ci-macos.yml b/.github/workflows/ci-macos.yml
index 6fb3f876..18eac7e9 100644
--- a/.github/workflows/ci-macos.yml
+++ b/.github/workflows/ci-macos.yml
@@ -10,10 +10,6 @@ on:
     - main
     - release/*
 
-env:
-  UNITY_HASH: 4016570cf34f
-  UNITY_FULL_VERSION: 2021.3.16f1
-  
 jobs:
   macos:
     runs-on: macos-latest
@@ -22,6 +18,11 @@ jobs:
     - name: Checkout 
       uses: actions/checkout@v1
 
+    - name: Set Environment Variables
+      uses: ./.github/actions/setvars
+      with:
+        varFilePath: ./.github/variables/unity.env
+
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
       with:
diff --git a/.github/workflows/ci-windows.yml b/.github/workflows/ci-windows.yml
index 950d3057..4c100932 100644
--- a/.github/workflows/ci-windows.yml
+++ b/.github/workflows/ci-windows.yml
@@ -10,10 +10,6 @@ on:
     - main
     - release/*
 
-env:
-  UNITY_HASH: 4016570cf34f
-  UNITY_FULL_VERSION: 2021.3.16f1
-
 jobs:
   windows:
     runs-on: windows-latest
@@ -22,6 +18,11 @@ jobs:
     - name: Checkout 
       uses: actions/checkout@v1
 
+    - name: Set Environment Variables
+      uses: ./.github/actions/setvars
+      with:
+        varFilePath: ./.github/variables/unity.env
+
     - name: Setup .NET      
       uses: actions/setup-dotnet@v1
       with: