diff --git a/.dart_tool/package_config.json b/.dart_tool/package_config.json
index a1b9ca7f822..f8bbb79b4c2 100644
--- a/.dart_tool/package_config.json
+++ b/.dart_tool/package_config.json
@@ -764,7 +764,7 @@
       "name": "yaml",
       "rootUri": "../third_party/pkg/yaml",
       "packageUri": "lib/",
-      "languageVersion": "2.4"
+      "languageVersion": "2.12"
     }
   ]
 }
diff --git a/DEPS b/DEPS
index 511e5553d99..784a058042d 100644
--- a/DEPS
+++ b/DEPS
@@ -166,7 +166,7 @@ vars = {
   "web_components_rev": "8f57dac273412a7172c8ade6f361b407e2e4ed02",
   "web_socket_channel_rev": "490061ef0e22d3c8460ad2802f9948219365ad6b",
   "WebCore_rev": "fb11e887f77919450e497344da570d780e078bc8",
-  "yaml_rev": "e5de429147a6b0fcb7e8ddb3c8e4674dc5dd0ecc",
+  "yaml_rev": "925c406f8bdb06ce7935f0a7d03187b36c6b62d0",
   "zlib_rev": "c44fb7248079cc3d5563b14b3f758aee60d6b415",
   "crashpad_rev": "bf327d8ceb6a669607b0dbab5a83a275d03f99ed",
   "minichromium_rev": "8d641e30a8b12088649606b912c2bc4947419ccc",