diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 542a110..aaacbe6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -31,7 +31,7 @@ jobs:
         - windows-latest
         haxe:
         - latest
-        - 4.2.5
+        - 4.3.0
         - 3.4.7
 
     steps:
diff --git a/README.md b/README.md
index 0f64521..6de7a4f 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: krdlab/setup-haxe@v1
         with:
-          haxe-version: 4.2.5
+          haxe-version: 4.3.0
       - run: |
           haxe -version
           haxelib install hxnodejs
diff --git a/action.yml b/action.yml
index fa0f9b6..dbf4294 100644
--- a/action.yml
+++ b/action.yml
@@ -3,9 +3,9 @@ description: 'Setup a Haxe environment and add it to the PATH'
 author: 'Sho Kuroda <krdlab@gmail.com>'
 inputs:
   haxe-version:
-    description: 'Version Spec of the version to use. Example: 4.2.5'
+    description: 'Version Spec of the version to use. Example: 4.3.0'
     required: true
-    default: '4.2.5'
+    default: '4.3.0'
   cache-dependency-path:
     description: 'Used to specify the path to a dependency file.'
     required: false