diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 94c0e43..52c5776 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -170,10 +170,47 @@ jobs:
           name: WebGL_3-1-8
           path: ./Dev/Plugin/Assets/Effekseer/Plugins
 
+  webgl_3-1-38:
+    name: WebGL Build with emsdk 3.1.38
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Cache emsdk
+        id: cache
+        uses: actions/cache@v1
+        with:
+          path: ./emsdk
+          key: ${{ runner.os }}-emsdk-3_1-38
+
+      - name: install emsdk 3.1.38
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: |
+          git clone --depth 1 https://github.com/emscripten-core/emsdk.git
+          cd emsdk
+          ./emsdk install sdk-3.1.38-64bit
+          cd ..
+
+      - run: sh scripts/clone_dependencies.sh
+      - run: |
+          ./emsdk/emsdk activate sdk-3.1.38-64bit
+          source ./emsdk/emsdk_env.sh
+          cd ./Dev/Cpp/webgl
+          mkdir build2019
+          cd build2019
+          emcmake cmake -DCMAKE_BUILD_TYPE=Release ..
+          make
+          cp libEffekseerUnity.bc ../../../Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit/
+      - name: Upload math result for webgl
+        uses: actions/upload-artifact@v1
+        with:
+          name: WebGL_3-1-38
+          path: ./Dev/Plugin/Assets/Effekseer/Plugins
+
   merge:
     name: merge
     runs-on: ubuntu-latest
-    needs: [android, mac_ios, windows, webgl_1-38,webgl_2-0-19,webgl_3-1-8]
+    needs: [android, mac_ios, windows, webgl_1-38,webgl_2-0-19,webgl_3-1-8,webgl_3-1-38]
     steps:
       - uses: actions/checkout@v2
       - name: Download Android
@@ -206,6 +243,11 @@ jobs:
         with:
           name: WebGL_3-1-8
 
+      - name: Download webgl 3.1.38
+        uses: actions/download-artifact@v1
+        with:
+          name: WebGL_3-1-38
+
       - name: Copy
         run: |
           mv Android/Android/libs/arm64-v8a/libEffekseerUnity.so Dev/Plugin/Assets/Effekseer/Plugins/Android/libs/arm64-v8a/
@@ -217,6 +259,7 @@ jobs:
           mv WebGL_1-38/WebGL/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/
           mv WebGL_2-0-19/WebGL/2.0.19-64bit/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/2.0.19-64bit/
           mv WebGL_3-1-8/WebGL/3.1.8-64bit/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.8-64bit/
+          mv WebGL_3-1-38/WebGL/3.1.38-64bit/libEffekseerUnity.bc Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit/
           mv Windows/x86/EffekseerUnity.dll Dev/Plugin/Assets/Effekseer/Plugins/x86/
           mv Windows/x86_64/EffekseerUnity.dll Dev/Plugin/Assets/Effekseer/Plugins/x86_64/
       - name: Upload math result
diff --git a/Dev/Plugin/Assets/Effekseer/Editor/EffekseerPluginSwitcher.cs b/Dev/Plugin/Assets/Effekseer/Editor/EffekseerPluginSwitcher.cs
index e9166f1..56d093d 100644
--- a/Dev/Plugin/Assets/Effekseer/Editor/EffekseerPluginSwitcher.cs
+++ b/Dev/Plugin/Assets/Effekseer/Editor/EffekseerPluginSwitcher.cs
@@ -10,7 +10,9 @@ public class EffekseerPluginSwitcher
 {
 	static readonly string tempFilePath = "Temp/EffekseerPluginSwitcher";
 
-#if UNITY_2022_2_OR_NEWER
+#if UNITY_2023_2_OR_NEWER
+	static readonly string bcPath = "WebGL/3.1.38-64bit/libEffekseerUnity.bc";
+#elif UNITY_2022_2_OR_NEWER
 	static readonly string bcPath = "WebGL/3.1.8-64bit/libEffekseerUnity.bc";
 #elif UNITY_2021_2_OR_NEWER
 	static readonly string bcPath = "WebGL/2.0.19-64bit/libEffekseerUnity.bc";
diff --git a/Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit.meta b/Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit.meta
new file mode 100644
index 0000000..14e8bc5
--- /dev/null
+++ b/Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 6728a1f60624558459bc32cef38a447b
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit/libEffekseerUnity.bc.meta b/Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit/libEffekseerUnity.bc.meta
new file mode 100644
index 0000000..8323853
--- /dev/null
+++ b/Dev/Plugin/Assets/Effekseer/Plugins/WebGL/3.1.38-64bit/libEffekseerUnity.bc.meta
@@ -0,0 +1,32 @@
+fileFormatVersion: 2
+guid: 587550b6d683aa54fad0873a0c257387
+PluginImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  iconMap: {}
+  executionOrder: {}
+  defineConstraints: []
+  isPreloaded: 0
+  isOverridable: 0
+  isExplicitlyReferenced: 0
+  validateReferences: 1
+  platformData:
+  - first:
+      Any: 
+    second:
+      enabled: 0
+      settings: {}
+  - first:
+      Editor: Editor
+    second:
+      enabled: 0
+      settings:
+        DefaultValueInitialized: true
+  - first:
+      WebGL: WebGL
+    second:
+      enabled: 1
+      settings: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: