diff --git a/package-lock.json b/package-lock.json
index 8839e4a..b68dba6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
         "lint-staged": "^15.2.10",
         "markdownlint-cli": "^0.43.0",
         "prettier": "^3.3.3",
+        "prettier-config-bananass": "^0.0.1",
         "textlint": "^14.3.0",
         "textlint-rule-allowed-uris": "^1.0.6",
         "typescript": "^5.6.3"
@@ -13191,6 +13192,16 @@
         "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
+    "node_modules/prettier-config-bananass": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/prettier-config-bananass/-/prettier-config-bananass-0.0.1.tgz",
+      "integrity": "sha512-hzCBcHUL4wAtyzsfyo2BqTQz7t1sPa9u2Rgm5r6kF+ZE/LfyK+POAF9Wt6Hh8ojca21iNMxmP8Si2dt205RtVQ==",
+      "dev": true,
+      "license": "MIT",
+      "peerDependencies": {
+        "prettier": ">=3.0.0"
+      }
+    },
     "node_modules/pretty-format": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-29.7.0.tgz",
diff --git a/package.json b/package.json
index 69b8ed3..0c113de 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
     "lint-staged": "^15.2.10",
     "markdownlint-cli": "^0.43.0",
     "prettier": "^3.3.3",
+    "prettier-config-bananass": "^0.0.1",
     "textlint": "^14.3.0",
     "textlint-rule-allowed-uris": "^1.0.6",
     "typescript": "^5.6.3"