diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d1347c..8a0d8ae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.2.4](https://github.com/googleapis/python-eventarc/compare/v0.2.3...v0.2.4) (2022-06-08)
+
+
+### Bug Fixes
+
+* **deps:** require protobuf<4.0.0 on v0 branch ([#145](https://github.com/googleapis/python-eventarc/issues/145)) ([fecb40b](https://github.com/googleapis/python-eventarc/commit/fecb40b591db643e168be62d12ed462a2167621d))
+
 ### [0.2.3](https://github.com/googleapis/python-eventarc/compare/v0.2.2...v0.2.3) (2022-04-04)
 
 
diff --git a/setup.py b/setup.py
index d56be9c..6167d38 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = "google-cloud-eventarc"
 description = "Eventarc API client library"
-version = "0.2.3"
+version = "0.2.4"
 release_status = "Development Status :: 4 - Beta"
 url = "https://github.com/googleapis/python-eventarc"
 dependencies = [
@@ -30,8 +30,9 @@
     # Until this issue is closed
     # https://github.com/googleapis/google-cloud-python/issues/10566
     "google-api-core[grpc] >= 1.31.5, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.0",
-    "proto-plus >= 1.15.0",
-    "packaging >= 14.3",
+    "proto-plus >= 1.15.0,<2.0.0dev",
+    "packaging >= 14.3,<22.0.0dev",
+    "protobuf<4.0.0dev",
 ]
 
 package_root = os.path.abspath(os.path.dirname(__file__))