diff --git a/.librarian/state.yaml b/.librarian/state.yaml
index 826e2646e..ad5067a8e 100644
--- a/.librarian/state.yaml
+++ b/.librarian/state.yaml
@@ -1,7 +1,7 @@
 image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator:latest
 libraries:
   - id: google-auth
-    version: 2.44.0
+    version: 2.45.0
     last_generated_commit: 102d9f92ac6ed649a61efd9b208e4d1de278e9bb
     apis: []
     source_roots:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51f0c787a..039a85d32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-auth/#history
 
+## [2.45.0](https://github.com/googleapis/google-auth-library-python/compare/v2.44.0...v2.45.0) (2025-12-15)
+
+
+### Features
+
+* Adding Agent Identity bound token support and handling certificate mismatches with retries (#1890) ([b32c934e6b0d09b94c467cd432a0a635e8b05f5c](https://github.com/googleapis/google-auth-library-python/commit/b32c934e6b0d09b94c467cd432a0a635e8b05f5c))
+
 ## [2.44.0](https://github.com/googleapis/google-auth-library-python/compare/v2.43.0...v2.44.0) (2025-12-13)
 
 
diff --git a/google/auth/version.py b/google/auth/version.py
index 80d1360d3..a833feb51 100644
--- a/google/auth/version.py
+++ b/google/auth/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.44.0"
+__version__ = "2.45.0"