diff --git a/package-lock.json b/package-lock.json
index 53834bb..667b42b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "remark-lint-code-block-syntax",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "remark-lint-code-block-syntax",
-      "version": "0.2.1",
+      "version": "0.3.0",
       "license": "MIT",
       "dependencies": {
         "esprima": "^4.0.1",
diff --git a/package.json b/package.json
index 8686846..d2ddd0b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "remark-lint-code-block-syntax",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "description": "A remark-lint rule to check language syntax in a code block.",
   "author": "Masafumi Koba",
   "license": "MIT",