diff --git a/package.json b/package.json
index e34771a6..2857e367 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gossip-site-blocker",
-  "version": "1.15.3.1",
+  "version": "1.15.4",
   "license": "MIT",
   "author": "Hideki Ikemoto",
   "type": "module",
diff --git a/public/manifest.firefox.json b/public/manifest.firefox.json
index 300b51c7..71faae59 100644
--- a/public/manifest.firefox.json
+++ b/public/manifest.firefox.json
@@ -1,8 +1,7 @@
 {
   "manifest_version": 2,
   "name": "__MSG_extensionName__",
-  "version": "1.15.3.1",
-  "version_name": "1.15.4(dev)",
+  "version": "1.15.4",
   "default_locale": "en",
   "description": "__MSG_extensionDescription__",
   "icons": {
diff --git a/public/manifest.json b/public/manifest.json
index 233a1e29..c6bbd834 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -1,8 +1,7 @@
 {
   "manifest_version": 3,
   "name": "__MSG_extensionName__",
-  "version": "1.15.3.1",
-  "version_name": "1.15.4(dev)",
+  "version": "1.15.4",
   "default_locale": "en",
   "description": "__MSG_extensionDescription__",
   "icons": {