diff --git a/wasm/demo/package-lock.json b/wasm/demo/package-lock.json
index 2026a1e49..621266989 100644
--- a/wasm/demo/package-lock.json
+++ b/wasm/demo/package-lock.json
@@ -9,7 +9,7 @@
             "version": "1.0.0",
             "license": "MIT",
             "dependencies": {
-                "@codemirror/lang-python": "^6.1.6",
+                "@codemirror/lang-python": "^6.2.1",
                 "@xterm/addon-fit": "^0.11.0",
                 "@xterm/xterm": "^5.3.0",
                 "codemirror": "^6.0.1",
@@ -52,9 +52,9 @@
             }
         },
         "node_modules/@codemirror/lang-python": {
-            "version": "6.1.7",
-            "resolved": "https://registry.npmjs.org/@codemirror/lang-python/-/lang-python-6.1.7.tgz",
-            "integrity": "sha512-mZnFTsL4lW5p9ch8uKNKeRU3xGGxr1QpESLilfON2E3fQzOa/OygEMkaDvERvXDJWJA9U9oN/D4w0ZuUzNO4+g==",
+            "version": "6.2.1",
+            "resolved": "https://registry.npmjs.org/@codemirror/lang-python/-/lang-python-6.2.1.tgz",
+            "integrity": "sha512-IRjC8RUBhn9mGR9ywecNhB51yePWCGgvHfY1lWN/Mrp3cKuHr0isDKia+9HnvhiWNnMpbGhWrkhuWOc09exRyw==",
             "license": "MIT",
             "dependencies": {
                 "@codemirror/autocomplete": "^6.3.2",
diff --git a/wasm/demo/package.json b/wasm/demo/package.json
index bee298c38..865097999 100644
--- a/wasm/demo/package.json
+++ b/wasm/demo/package.json
@@ -4,7 +4,7 @@
     "description": "Bindings to the RustPython library for WebAssembly",
     "main": "index.js",
     "dependencies": {
-        "@codemirror/lang-python": "^6.1.6",
+        "@codemirror/lang-python": "^6.2.1",
         "@xterm/addon-fit": "^0.11.0",
         "@xterm/xterm": "^5.3.0",
         "codemirror": "^6.0.1",