diff --git a/build.yaml b/build.yaml
index 79bb8c9471540f78959f36a3e0c6e04e31b9da78..be77738002ca95d143588d9be907e74a54e2d95c 100644
--- a/build.yaml
+++ b/build.yaml
@@ -7,7 +7,7 @@ settings:
   '#3': Use "-preN" suffixes to identify pre-release versions
   '#4': Per-language overrides are possible with (eg) ruby_version tag here
   '#5': See the expand_version.py for all the quirks here
-  python_version: 1.0.3
+  python_version: 1.0.4
   version: 1.0.1
 filegroups:
 - name: census
diff --git a/src/python/grpcio/grpc_version.py b/src/python/grpcio/grpc_version.py
index 775ece397bb2c11c7a74a938f9b4c33527e868bb..1c0183ee47970e476711453a20e42a846f32803c 100644
--- a/src/python/grpcio/grpc_version.py
+++ b/src/python/grpcio/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio/grpc_version.py.template`!!!
 
-VERSION='1.0.3'
+VERSION='1.0.4'
diff --git a/src/python/grpcio_health_checking/grpc_version.py b/src/python/grpcio_health_checking/grpc_version.py
index 17ef5873f142b6a5508a0ba111065b6d20c95af9..60e94ffcfa7d7daf7f41159a9e429d3626963ae5 100644
--- a/src/python/grpcio_health_checking/grpc_version.py
+++ b/src/python/grpcio_health_checking/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_health_checking/grpc_version.py.template`!!!
 
-VERSION='1.0.3'
+VERSION='1.0.4'
diff --git a/src/python/grpcio_tests/grpc_version.py b/src/python/grpcio_tests/grpc_version.py
index c6226160b8964f885a0589056cb17969bfe3fb8a..bdc1c36b705bb316befe93339959f2e504a4d583 100644
--- a/src/python/grpcio_tests/grpc_version.py
+++ b/src/python/grpcio_tests/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_tests/grpc_version.py.template`!!!
 
-VERSION='1.0.3'
+VERSION='1.0.4'
diff --git a/tools/distrib/python/grpcio_tools/grpc_version.py b/tools/distrib/python/grpcio_tools/grpc_version.py
index a96d2ef8b26b61d380d507f46961fd8b44a65e75..547a4b5ae264774790a413acd230bd663ca89be4 100644
--- a/tools/distrib/python/grpcio_tools/grpc_version.py
+++ b/tools/distrib/python/grpcio_tools/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/tools/distrib/python/grpcio_tools/grpc_version.py.template`!!!
 
-VERSION='1.0.3'
+VERSION='1.0.4'