diff --git a/web/_tool/pubspec.lock b/web/_tool/pubspec.lock
index 9e7861fef22..8a00bc6099d 100644
--- a/web/_tool/pubspec.lock
+++ b/web/_tool/pubspec.lock
@@ -8,13 +8,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.3.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.1"
   lints:
     dependency: "direct dev"
     description:
@@ -28,7 +21,7 @@ packages:
       name: markdown
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.0.0"
+    version: "7.0.1"
   meta:
     dependency: transitive
     description:
@@ -44,4 +37,4 @@ packages:
     source: hosted
     version: "1.8.1"
 sdks:
-  dart: ">=2.12.0 <3.0.0"
+  dart: ">=2.17.0 <3.0.0"
diff --git a/web/_tool/pubspec.yaml b/web/_tool/pubspec.yaml
index c41a8d8a614..0c085c81018 100644
--- a/web/_tool/pubspec.yaml
+++ b/web/_tool/pubspec.yaml
@@ -5,7 +5,7 @@ environment:
   sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
-  markdown: ^5.0.0
+  markdown: ^7.0.1
   path: ^1.8.0
 
 dev_dependencies: