diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2988f4..280564e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.1.5](https://github.com/googleapis/python-debugger-client/compare/v0.1.4...v0.1.5) (2022-06-07)
+
+
+### Bug Fixes
+
+* **deps:** require protobuf<4.0.0 on v0 branch ([#105](https://github.com/googleapis/python-debugger-client/issues/105)) ([7e9b458](https://github.com/googleapis/python-debugger-client/commit/7e9b45886980042d58ed8169147bc48e472daaf3))
+
 ### [0.1.4](https://github.com/googleapis/python-debugger-client/compare/v0.1.3...v0.1.4) (2022-04-11)
 
 
diff --git a/setup.py b/setup.py
index 798fcce..fb0fc55 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@
 
 name = "google-cloud-debugger-client"
 description = "Cloud Debugger API client library"
-version = "0.1.4"
+version = "0.1.5"
 release_status = "Development Status :: 4 - Beta"
 url = "https://github.com/googleapis/python-debugger-client"
 dependencies = [
@@ -29,8 +29,9 @@
     # 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",
     "google-cloud-source-context >= 0.1.0, < 1.0.0dev",
 ]