diff --git a/.github/workflows/bench.yaml b/.github/workflows/bench.yaml
index 1749010..f54f19e 100644
--- a/.github/workflows/bench.yaml
+++ b/.github/workflows/bench.yaml
@@ -4,6 +4,8 @@ on:
   create:
     tags:
       - 'v*'
+  repository_dispatch:
+    types: [wf-bench]
 
 jobs:
   bench:
@@ -13,7 +15,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Set up Node.js
         uses: actions/setup-node@master
         with:
diff --git a/.github/workflows/cli.yml b/.github/workflows/cli.yml
index 5a79ac3..dcfc462 100644
--- a/.github/workflows/cli.yml
+++ b/.github/workflows/cli.yml
@@ -4,6 +4,8 @@ on:
   create:
     tags:
       - 'v*'
+  repository_dispatch:
+    types: [wf-cli]
 
 jobs:
   cli:
@@ -29,7 +31,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Get file name
         id: file
         shell: bash
diff --git a/.github/workflows/java.yml b/.github/workflows/java.yml
index 2b3f9d8..ab380a3 100644
--- a/.github/workflows/java.yml
+++ b/.github/workflows/java.yml
@@ -4,6 +4,8 @@ on:
   create:
     tags:
       - 'v*'
+  repository_dispatch:
+    types: [wf-java]
 
 jobs:
   build:
diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index 7267bb7..742371d 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -4,6 +4,8 @@ on:
   create:
     tags:
       - 'v*'
+  repository_dispatch:
+    types: [wf-nodejs]
 
 jobs:
   build:
@@ -25,7 +27,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Set up Node.js
         uses: actions/setup-node@master
         with:
@@ -62,7 +66,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Set up Node.js
         uses: actions/setup-node@master
         with:
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index ee878a9..0309f38 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -4,6 +4,8 @@ on:
   create:
     tags:
       - 'v*'
+  repository_dispatch:
+    types: [wf-python]
 
 jobs:
   build:
@@ -30,7 +32,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Get native module file name
         id: native_file
         shell: bash
@@ -74,7 +78,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 4c6795b..5fe2aa6 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -4,6 +4,8 @@ on:
   create:
     tags:
       - 'v*'
+  repository_dispatch:
+    types: [wf-ruby]
 
 jobs:
   build:
@@ -24,7 +26,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       # Install Ruby manually as actions/setup-ruby@v1 does not compile with `--enable-shared`.
       - name: Prepare for rbenv
         run: |
@@ -91,7 +95,9 @@ jobs:
       - name: Get version
         id: version
         shell: bash
-        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+        run: |
+          v=${GITHUB_REF#refs/tags/v}
+          echo ::set-output name=VERSION::${v:-0.0.0}
       - name: Set up Ruby
         uses: actions/setup-ruby@v1
         with: