diff --git a/package-lock.json b/package-lock.json
index 5e40df4..5d430ee 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@fontsource/roboto-mono": "~5.0",
         "@vscode/gulp-vinyl-zip": "~2.5",
         "autoprefixer": "~10.4",
-        "browser-pack-flat": "~3.4",
+        "browser-pack-flat": "~3.5",
         "browserify": "~16.5",
         "cssnano": "~4.1",
         "eslint": "~6.8",
@@ -2210,9 +2210,9 @@
       }
     },
     "node_modules/browser-pack-flat": {
-      "version": "3.4.2",
-      "resolved": "https://registry.npmjs.org/browser-pack-flat/-/browser-pack-flat-3.4.2.tgz",
-      "integrity": "sha512-TrUo6n2fGSOCYFAKkt/EkgenytAuuCI88fmXFA60aNFVHvz3CZEBTXYSvvXVpU6xpjM8lj/6vkC6Exn8KPjtPw==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/browser-pack-flat/-/browser-pack-flat-3.5.0.tgz",
+      "integrity": "sha512-u3iJUjs+TC/NGIL2GLyIcn5ppoNZXhTWqSW/gQbGIGvQiXXCQQzr5VWfACFraXQn2JrDlyRnKLeOs5AWXzKI6A==",
       "dev": true,
       "dependencies": {
         "combine-source-map": "^0.8.0",
@@ -2226,7 +2226,7 @@
         "path-parse": "^1.0.5",
         "scope-analyzer": "^2.0.0",
         "stream-combiner": "^0.2.2",
-        "through2": "^2.0.3",
+        "through2": "^3.0.1",
         "transform-ast": "^2.4.2",
         "umd": "^3.0.3",
         "wrap-comment": "^1.0.0"
@@ -2235,6 +2235,16 @@
         "browser-pack-flat": "cli.js"
       }
     },
+    "node_modules/browser-pack-flat/node_modules/through2": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/through2/-/through2-3.0.2.tgz",
+      "integrity": "sha512-enaDQ4MUyP2W6ZyT6EsMzqBPZaM/avg8iuo+l2d3QCs0J+6RaqkHV/2/lOwDTueBHeJ/2LG9lrLW3d5rWPucuQ==",
+      "dev": true,
+      "dependencies": {
+        "inherits": "^2.0.4",
+        "readable-stream": "2 || 3"
+      }
+    },
     "node_modules/browser-process-hrtime": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/browser-process-hrtime/-/browser-process-hrtime-0.1.3.tgz",
diff --git a/package.json b/package.json
index 0a717be..30b8f8d 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "@fontsource/roboto-mono": "~5.0",
     "@vscode/gulp-vinyl-zip": "~2.5",
     "autoprefixer": "~10.4",
-    "browser-pack-flat": "~3.4",
+    "browser-pack-flat": "~3.5",
     "browserify": "~16.5",
     "cssnano": "~4.1",
     "eslint": "~6.8",
diff --git a/yarn.lock b/yarn.lock
index 547c430..7708f21 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1062,10 +1062,10 @@ brorand@^1.0.1, brorand@^1.1.0:
   resolved "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz"
   integrity sha512-cKV8tMCEpQs4hK/ik71d6LrPOnpkpGBR0wzxqr68g2m/LB2GxVYQroAjMJZRVM1Y4BCjCKc3vAamxSzOY2RP+w==
 
-browser-pack-flat@~3.4:
-  version "3.4.2"
-  resolved "https://registry.npmjs.org/browser-pack-flat/-/browser-pack-flat-3.4.2.tgz"
-  integrity sha512-TrUo6n2fGSOCYFAKkt/EkgenytAuuCI88fmXFA60aNFVHvz3CZEBTXYSvvXVpU6xpjM8lj/6vkC6Exn8KPjtPw==
+browser-pack-flat@~3.5:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/browser-pack-flat/-/browser-pack-flat-3.5.0.tgz#8c3cc15ef9b444c8c40d6240e8eb7c3c90970484"
+  integrity sha512-u3iJUjs+TC/NGIL2GLyIcn5ppoNZXhTWqSW/gQbGIGvQiXXCQQzr5VWfACFraXQn2JrDlyRnKLeOs5AWXzKI6A==
   dependencies:
     JSONStream "^1.3.2"
     combine-source-map "^0.8.0"
@@ -1078,7 +1078,7 @@ browser-pack-flat@~3.4:
     path-parse "^1.0.5"
     scope-analyzer "^2.0.0"
     stream-combiner "^0.2.2"
-    through2 "^2.0.3"
+    through2 "^3.0.1"
     transform-ast "^2.4.2"
     umd "^3.0.3"
     wrap-comment "^1.0.0"