diff --git a/package.json b/package.json
index 8ae6aec3a..c48f1493b 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "lodash": "4.17.21",
     "mocha": "10.2.0",
     "npm-run-all": "4.1.5",
-    "prettier": "2.8.1",
+    "prettier": "2.8.4",
     "shx": "0.3.4",
     "cz-conventional-changelog": "3.3.0",
     "@commitlint/cli": "17.3.0",
diff --git a/packages/chevrotain/diagrams/vendor/railroad-diagrams.js b/packages/chevrotain/diagrams/vendor/railroad-diagrams.js
index fc35dd73b..d7d79df6f 100644
--- a/packages/chevrotain/diagrams/vendor/railroad-diagrams.js
+++ b/packages/chevrotain/diagrams/vendor/railroad-diagrams.js
@@ -956,10 +956,10 @@
   ].forEach(function (e, i) {
     root[e] = temp[i]
   })
-}.call(this, {
+}).call(this, {
   VERTICAL_SEPARATION: 8,
   ARC_RADIUS: 10,
   DIAGRAM_CLASS: "railroad-diagram",
   STROKE_ODD_PIXEL_LENGTH: true,
   INTERNAL_ALIGNMENT: "center"
-}))
+})
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ce8b1c6d9..99e026511 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -30,7 +30,7 @@ importers:
       mocha: 10.2.0
       npm-run-all: 4.1.5
       nyc: 15.1.0
-      prettier: 2.8.1
+      prettier: 2.8.4
       rimraf: 3.0.2
       shx: 0.3.4
       sinon: 15.0.1
@@ -64,7 +64,7 @@ importers:
       mocha: 10.2.0
       npm-run-all: 4.1.5
       nyc: 15.1.0
-      prettier: 2.8.1
+      prettier: 2.8.4
       rimraf: 3.0.2
       shx: 0.3.4
       sinon: 15.0.1
@@ -7709,8 +7709,8 @@ packages:
     engines: {node: '>= 0.8.0'}
     dev: true
 
-  /prettier/2.8.1:
-    resolution: {integrity: sha512-lqGoSJBQNJidqCHE80vqZJHWHRFoNYsSpP9AjFhlhi9ODCJA541svILes/+/1GM3VaL/abZi7cpFzOpdR9UPKg==}
+  /prettier/2.8.4:
+    resolution: {integrity: sha512-vIS4Rlc2FNh0BySk3Wkd6xmwxB0FpOndW5fisM5H8hsZSxU2VWVB5CWIkIjWvrHjIhxk2g3bfMKM87zNTrZddw==}
     engines: {node: '>=10.13.0'}
     hasBin: true
     dev: true