diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fe42730c..94283df9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,15 @@
 
 [1]: https://pypi.org/project/google-cloud-logging/#history
 
+
+## [3.2.5](https://github.com/googleapis/python-logging/compare/v3.2.4...v3.2.5) (2022-10-10)
+
+
+### Bug Fixes
+
+* **deps:** Allow protobuf 3.19.5 ([#644](https://github.com/googleapis/python-logging/issues/644)) ([12f3001](https://github.com/googleapis/python-logging/commit/12f3001d834e858dbbbcdaab5894ec25a14c6820))
+
+
 ## [3.2.4](https://github.com/googleapis/python-logging/compare/v3.2.3...v3.2.4) (2022-10-04)
 
 
diff --git a/setup.py b/setup.py
index fbc8f8606..b92634197 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = "google-cloud-logging"
 description = "Stackdriver Logging API client library"
-version = "3.2.4"
+version = "3.2.5"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'
@@ -35,7 +35,7 @@
     "google-cloud-core >= 2.0.0, <3.0.0dev",
     "grpc-google-iam-v1 >=0.12.4, <1.0.0dev",
     "proto-plus >= 1.22.0, <2.0.0dev",
-    "protobuf >= 3.20.2, <5.0.0dev",
+    "protobuf>=3.19.5,<5.0.0dev,!=3.20.0,!=3.20.1,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
 ]
 extras = {}
 
diff --git a/testing/constraints-3.7.txt b/testing/constraints-3.7.txt
index 81bd9e5bd..6db145a06 100644
--- a/testing/constraints-3.7.txt
+++ b/testing/constraints-3.7.txt
@@ -8,4 +8,4 @@
 google-api-core==1.32.0
 google-cloud-core==2.0.0
 proto-plus==1.22.0
-protobuf==3.20.2
+protobuf==3.19.5