diff --git a/CHANGELOG.md b/CHANGELOG.md
index e48409f4..0ece3086 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
-## [2.19.1](https://github.com/googleapis/python-api-core/compare/v2.19.0...v2.19.1) (2024-06-19)
+## [2.19.1rc0](https://github.com/googleapis/python-api-core/compare/v2.19.0...v2.19.1rc0) (2024-06-19)
 
 
 ### Bug Fixes
diff --git a/google/api_core/version.py b/google/api_core/version.py
index 25b6f2f8..c6c622c0 100644
--- a/google/api_core/version.py
+++ b/google/api_core/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.19.1"
+__version__ = "2.19.1rc0"