diff --git a/package-lock.json b/package-lock.json
index 8e2e79e..a3fc07e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
         "@adafruit/ble-file-transfer-js": "adafruit/ble-file-transfer-js#1.0.5",
         "@adafruit/circuitpython-repl-js": "adafruit/circuitpython-repl-js#3.4.0",
         "@codemirror/lang-css": "^6.3.1",
-        "@codemirror/lang-html": "^6.4.11",
+        "@codemirror/lang-html": "^6.4.12",
         "@codemirror/lang-javascript": "^6.2.5",
         "@codemirror/lang-json": "^6.0.2",
         "@codemirror/lang-markdown": "^6.5.2",
@@ -87,9 +87,9 @@
       }
     },
     "node_modules/@codemirror/lang-html": {
-      "version": "6.4.11",
-      "resolved": "https://registry.npmjs.org/@codemirror/lang-html/-/lang-html-6.4.11.tgz",
-      "integrity": "sha512-9NsXp7Nwp891pQchI7gPdTwBuSuT3K65NGTHWHNJ55HjYcHLllr0rbIZNdOzas9ztc1EUVBlHou85FFZS4BNnw==",
+      "version": "6.4.12",
+      "resolved": "https://registry.npmjs.org/@codemirror/lang-html/-/lang-html-6.4.12.tgz",
+      "integrity": "sha512-pw2ReWKUqSkbvh76RAT4NYxiogRu+PWkR2ukAwO9uOgrm8uipkzjtKKtNpyeAQwHOqxEeSvAXZ6vr3AfyB9y/w==",
       "license": "MIT",
       "dependencies": {
         "@codemirror/autocomplete": "^6.0.0",
diff --git a/package.json b/package.json
index 950edba..c16b5b5 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@adafruit/ble-file-transfer-js": "adafruit/ble-file-transfer-js#1.0.5",
     "@adafruit/circuitpython-repl-js": "adafruit/circuitpython-repl-js#3.4.0",
     "@codemirror/lang-css": "^6.3.1",
-    "@codemirror/lang-html": "^6.4.11",
+    "@codemirror/lang-html": "^6.4.12",
     "@codemirror/lang-javascript": "^6.2.5",
     "@codemirror/lang-json": "^6.0.2",
     "@codemirror/lang-markdown": "^6.5.2",