diff --git a/package-lock.json b/package-lock.json
index 68d8575..e0e2e92 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "devDependencies": {
         "@types/node": "^24.0.0",
         "esbuild": "^0.25.0",
-        "tsx": "^4.20.0",
+        "tsx": "^4.23.13",
         "typescript": "^5.9.0"
       }
     },
@@ -525,9 +525,9 @@
       }
     },
     "node_modules/tsx": {
-      "version": "4.23.12",
-      "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.23.12.tgz",
-      "integrity": "sha512-FDf4L4sYzKtzWYhU/Xm0AQFdTjdIxNo9ElTf2mxXM6k8YMHXzYUe4yODVaXP4V9uMFbVg8c0qyBccK2OOxb45Q==",
+      "version": "4.23.13",
+      "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.23.13.tgz",
+      "integrity": "sha512-BL5MGkRln6aDYhb0xbQlEAGw743BaZYWdbWtdJOBriYJboKgUUYCadFp2/FpBBZquBC/ezNBn7wMMPx7FDZUDw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index cba9ec3..532acbf 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   "devDependencies": {
     "@types/node": "^24.0.0",
     "esbuild": "^0.25.0",
-    "tsx": "^4.20.0",
+    "tsx": "^4.23.13",
     "typescript": "^5.9.0"
   },
   "description": "Sample library, auditioning UI, and ephemeral pack builder for Strudel — companion to patternvault"