diff --git a/pyproject.toml b/pyproject.toml
index 9832c8cf0..3e7fd9d4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "temporalio"
-version = "1.19.0"
+version = "1.20.0"
 description = "Temporal.io Python SDK"
 authors = [{ name = "Temporal Technologies Inc", email = "sdk@temporal.io" }]
 requires-python = ">=3.10"
diff --git a/temporalio/service.py b/temporalio/service.py
index f8d174d02..32d53d45a 100644
--- a/temporalio/service.py
+++ b/temporalio/service.py
@@ -22,7 +22,7 @@
 import temporalio.exceptions
 import temporalio.runtime
 
-__version__ = "1.19.0"
+__version__ = "1.20.0"
 
 ServiceRequest = TypeVar("ServiceRequest", bound=google.protobuf.message.Message)
 ServiceResponse = TypeVar("ServiceResponse", bound=google.protobuf.message.Message)
diff --git a/uv.lock b/uv.lock
index 8b1ee82a8..4fd1531f2 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2951,7 +2951,7 @@ wheels = [
 
 [[package]]
 name = "temporalio"
-version = "1.19.0"
+version = "1.20.0"
 source = { virtual = "." }
 dependencies = [
     { name = "nexus-rpc" },