diff --git a/package-lock.json b/package-lock.json
index 5077bab..9698b5a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@cspell/dict-npm": "^5.2.4",
         "cspell": "^10.0.0",
         "npm-run-all": "^4.1.5",
-        "prettier": "^3.8.0",
+        "prettier": "^3.9.1",
         "prettier-plugin-latex": "^2.0.1",
         "shx": "^0.4.0"
       }
@@ -2572,9 +2572,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.8.0",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.0.tgz",
-      "integrity": "sha512-yEPsovQfpxYfgWNhCfECjG5AQaO+K3dp6XERmOepyPDVqcJm+bjyCVO3pmU+nAPe0N5dDvekfGezt/EIiRe1TA==",
+      "version": "3.9.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.1.tgz",
+      "integrity": "sha512-ppiDo2CSwexck1eyZUwJHg/N3nf1+6IRCv7W/VJ5vaLnVCmB7+3CdRfMwoCHBBX6xTrREDTksZ4OZl5SSf4zXA==",
       "dev": true,
       "license": "MIT",
       "bin": {
diff --git a/package.json b/package.json
index 70f113a..b4ebb2a 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "@cspell/dict-npm": "^5.2.4",
     "cspell": "^10.0.0",
     "npm-run-all": "^4.1.5",
-    "prettier": "^3.8.0",
+    "prettier": "^3.9.1",
     "prettier-plugin-latex": "^2.0.1",
     "shx": "^0.4.0"
   }