diff --git a/.github/.release-please-manifest.json b/.github/.release-please-manifest.json
index 6ed9c80128d..984e5f0f9a5 100644
--- a/.github/.release-please-manifest.json
+++ b/.github/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.7.0"
+  ".": "2.7.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed93c2b12cf..ba1a8e9c8e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [2.7.1](https://github.com/google/adk-python/compare/v2.7.0...v2.7.1) (2026-08-17)
+
+
+### Bug Fixes
+
+* **deps:** restore the OpenTelemetry 1.42.1 ceiling ([8e6f361](https://github.com/google/adk-python/commit/8e6f3613acb6ec07568a75461b964b311f404132))
+* validate session initialization events ([e2b8ace](https://github.com/google/adk-python/commit/e2b8acefa2580b566b6fd9863dda203534294536)), closes [#5290](https://github.com/google/adk-python/issues/5290)
+
 ## [2.7.0](https://github.com/google/adk-python/compare/v2.6.3...v2.7.0) (2026-08-13)
 
 ### Highlights
diff --git a/src/google/adk/version.py b/src/google/adk/version.py
index a9f3380a6f8..4e8136e9a1b 100644
--- a/src/google/adk/version.py
+++ b/src/google/adk/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 
 # version: major.minor.patch
-__version__ = "2.7.0"
+__version__ = "2.7.1"