diff --git a/pkg/dds/CHANGELOG.md b/pkg/dds/CHANGELOG.md
index 59974480198..5fa4bd2863b 100644
--- a/pkg/dds/CHANGELOG.md
+++ b/pkg/dds/CHANGELOG.md
@@ -1,5 +1,6 @@
 # 3.3.0-unreleased
 - **Breaking change:** [DAP] Several signatures in DAP debug adapter classes have been updated to use `Uri`s where they previously used `String path`s. This is to support communicating with the DAP client using URIs instead of file paths. URIs may be used only when the client sets the custom `supportsDartUris` client capability during initialization.
+- Updated `package:dap` version to 1.2.0.
 
 # 3.2.1
 - Adding `unified_analytics` as a dependency and added static method `DevToolsUtils.initializeAnalytics` to create analytics instance for DevTools.
diff --git a/pkg/dds/pubspec.yaml b/pkg/dds/pubspec.yaml
index b0f35ef6435..ac77d032f96 100644
--- a/pkg/dds/pubspec.yaml
+++ b/pkg/dds/pubspec.yaml
@@ -14,7 +14,7 @@ dependencies:
   browser_launcher: ^1.0.0
   collection: ^1.15.0
   dds_service_extensions: ^1.6.0
-  dap: ^1.1.0
+  dap: ^1.2.0
   extension_discovery: ^2.0.0
   devtools_shared: ^7.0.0
   http_multi_server: ^3.0.0
diff --git a/third_party/pkg/dap/CHANGELOG.md b/third_party/pkg/dap/CHANGELOG.md
index f592145f185..42c1adcaee2 100644
--- a/third_party/pkg/dap/CHANGELOG.md
+++ b/third_party/pkg/dap/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.2.0
+
+- Added `DartInitializeRequestArguments`, a subclass of `InitializeRequestArguments` that supports a custom flag `supportsDartUris` for informing the debug adapter that the client supports using URIs in places that might usually be file paths (such as `stackTraceRequest`). Setting this flag indicates that the client supports `file:` URIs _and also_ any custom-scheme URIs whose content can be provided by the analysis server from the matching Dart SDK.
+
 ## 1.1.0
 
 - Updated all generated classes using the latest published version of the DAP spec.
diff --git a/third_party/pkg/dap/pubspec.yaml b/third_party/pkg/dap/pubspec.yaml
index d3e6090226d..5e200c5a638 100644
--- a/third_party/pkg/dap/pubspec.yaml
+++ b/third_party/pkg/dap/pubspec.yaml
@@ -1,5 +1,5 @@
 name: dap
-version: 1.1.0
+version: 1.2.0
 description: >-
   A package of classes that are generated from the DAP specifications along with
   their generating code.