diff --git a/CHANGELOG.md b/CHANGELOG.md
index bfbb9c50..39f77625 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-tasks/#history
 
+## [2.10.4](https://github.com/googleapis/python-tasks/compare/v2.10.3...v2.10.4) (2022-10-07)
+
+
+### Bug Fixes
+
+* **deps:** Allow protobuf 3.19.5 ([#309](https://github.com/googleapis/python-tasks/issues/309)) ([c96e91c](https://github.com/googleapis/python-tasks/commit/c96e91c82b46860dd435857f49dbc0458835324a))
+
 ## [2.10.3](https://github.com/googleapis/python-tasks/compare/v2.10.2...v2.10.3) (2022-09-29)
 
 
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index c9757fa8..a120d6cc 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1 +1 @@
-google-cloud-tasks==2.10.2
+google-cloud-tasks==2.10.3
diff --git a/setup.py b/setup.py
index a82f95b6..0faaf952 100644
--- a/setup.py
+++ b/setup.py
@@ -21,13 +21,13 @@
 
 name = "google-cloud-tasks"
 description = "Cloud Tasks API API client library"
-version = "2.10.3"
+version = "2.10.4"
 release_status = "Development Status :: 5 - Production/Stable"
 dependencies = [
     "google-api-core[grpc] >= 1.32.0, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*",
     "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,!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
 ]
 
 extras = {"libcst": "libcst >= 0.2.5"}
diff --git a/testing/constraints-3.7.txt b/testing/constraints-3.7.txt
index c9a08f7d..90f4b6d9 100644
--- a/testing/constraints-3.7.txt
+++ b/testing/constraints-3.7.txt
@@ -9,4 +9,4 @@ google-api-core==1.32.0
 grpc-google-iam-v1==0.12.4
 proto-plus==1.22.0
 libcst==0.2.5
-protobuf==3.20.2
+protobuf==3.19.5