diff --git a/interop/runner/package-lock.json b/interop/runner/package-lock.json
index 1de4113..4fa1dfb 100644
--- a/interop/runner/package-lock.json
+++ b/interop/runner/package-lock.json
@@ -11,7 +11,7 @@
         "@mysten/sui": "^1.30.2",
         "atoma-sdk": "0.1.1",
         "axios": "^1.9.0",
-        "tsx": "^4.19.4",
+        "tsx": "^4.20.5",
         "typescript": "^5.8.3"
       }
     },
@@ -811,9 +811,9 @@
       }
     },
     "node_modules/tsx": {
-      "version": "4.19.4",
-      "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.19.4.tgz",
-      "integrity": "sha512-gK5GVzDkJK1SI1zwHf32Mqxf2tSJkNx+eYcNly5+nHvWqXUJYUkWBQtKauoESz3ymezAI++ZwT855x5p5eop+Q==",
+      "version": "4.20.5",
+      "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.20.5.tgz",
+      "integrity": "sha512-+wKjMNU9w/EaQayHXb7WA7ZaHY6hN8WgfvHNQ3t1PnU91/7O8TcTnIhCDYTZwnt8JsO9IBqZ30Ln1r7pPF52Aw==",
       "license": "MIT",
       "dependencies": {
         "esbuild": "~0.25.0",
diff --git a/interop/runner/package.json b/interop/runner/package.json
index f31b193..840efbe 100644
--- a/interop/runner/package.json
+++ b/interop/runner/package.json
@@ -11,7 +11,7 @@
   "dependencies": {
     "@mysten/sui": "^1.30.2",
     "axios": "^1.9.0",
-    "tsx": "^4.19.4",
+    "tsx": "^4.20.5",
     "typescript": "^5.8.3",
     "atoma-sdk": "0.1.1"
   }