diff --git a/pyproject.toml b/pyproject.toml
index ea908cd3..04f156c4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ authors = [{ name = "Temporal Technologies Inc", email = "sdk@temporal.io" }]
 requires-python = "~=3.9"
 readme = "README.md"
 license = "MIT"
-dependencies = ["temporalio>=1.11.1,<2"]
+dependencies = ["temporalio>=1.12.0,<2"]
 
 [project.urls]
 Homepage = "https://github.com/temporalio/samples-python"
diff --git a/uv.lock b/uv.lock
index d0a1a41d..3b3af23c 100644
--- a/uv.lock
+++ b/uv.lock
@@ -677,6 +677,7 @@ wheels = [
 name = "greenlet"
 version = "3.2.2"
 source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/34/c1/a82edae11d46c0d83481aacaa1e578fea21d94a1ef400afd734d47ad95ad/greenlet-3.2.2.tar.gz", hash = "sha256:ad053d34421a2debba45aa3cc39acf454acbcd025b3fc1a9f8a0dee237abd485", size = 185797, upload-time = "2025-05-09T19:47:35.066Z" }
 wheels = [
     { url = "https://files.pythonhosted.org/packages/05/66/910217271189cc3f32f670040235f4bf026ded8ca07270667d69c06e7324/greenlet-3.2.2-cp310-cp310-macosx_11_0_universal2.whl", hash = "sha256:c49e9f7c6f625507ed83a7485366b46cbe325717c60837f7244fc99ba16ba9d6", size = 267395, upload-time = "2025-05-09T14:50:45.357Z" },
     { url = "https://files.pythonhosted.org/packages/a8/36/8d812402ca21017c82880f399309afadb78a0aa300a9b45d741e4df5d954/greenlet-3.2.2-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:c3cc1a3ed00ecfea8932477f729a9f616ad7347a5e55d50929efa50a86cb7be7", size = 625742, upload-time = "2025-05-09T15:23:58.293Z" },
@@ -2292,7 +2293,7 @@ wheels = [
 
 [[package]]
 name = "temporalio"
-version = "1.11.1"
+version = "1.12.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "protobuf" },
@@ -2300,13 +2301,13 @@ dependencies = [
     { name = "types-protobuf" },
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/b7/2a/bd8cfdd116e65309c6a9f3b72126d658159d6655163802ecf719c5435d06/temporalio-1.11.1.tar.gz", hash = "sha256:d7b5e4fdcdb523fa56979fa7330903b3188980f9aec9a4564c2ad910aec0cb85", size = 1509413, upload-time = "2025-05-09T16:56:29.89Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6a/c1/eb11d767dfd92c23e88a1bdf95a2a66b39402bc509c2fc923da60e23c423/temporalio-1.12.0.tar.gz", hash = "sha256:04e451b1560e64e0276280dd450adc3c867d06d8ebcf91b391fa137a48f26bc7", size = 1545662, upload-time = "2025-05-30T16:28:45.764Z" }
 wheels = [
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-    { url = "https://files.pythonhosted.org/packages/96/28/f3d1829ef0fa7df8e9421172a16afec382733b3de8d1d92ff521cd548509/temporalio-1.11.1-cp39-abi3-macosx_11_0_arm64.whl", hash = "sha256:1c98d50520cb145c6219847876db8f8928d2b8f371341184686ebd30371868bf", size = 11480568, upload-time = "2025-05-09T16:56:15.074Z" },
-    { url = "https://files.pythonhosted.org/packages/f2/43/245578eaeaddc4166ec5726adfeea7cc356a6600f9996e55d74b13e162e6/temporalio-1.11.1-cp39-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:96711fc26387e6308ff68c12653a887230bb86cf26e6bc00c7f9208d3e6641df", size = 11864944, upload-time = "2025-05-09T16:56:19.411Z" },
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-    { url = "https://files.pythonhosted.org/packages/88/17/1d58baeccbd4caea47360d623e67165120023ff8bbb7bc1f24e0f300d26a/temporalio-1.11.1-cp39-abi3-win_amd64.whl", hash = "sha256:504f6ddb219bd7b39c67b7648c599edf3626043eef90d11da952af5db8c7f1a5", size = 12125170, upload-time = "2025-05-09T16:56:26.87Z" },
+    { url = "https://files.pythonhosted.org/packages/26/05/f700ba36c63956c5ec206d7fbc166993df896d387477def327b7622ac32a/temporalio-1.12.0-cp39-abi3-macosx_10_12_x86_64.whl", hash = "sha256:388b7506bd5f651b784ed950b37221dad7166be5568e066e084df28cecc73db6", size = 11993920, upload-time = "2025-05-30T16:28:32.749Z" },
+    { url = "https://files.pythonhosted.org/packages/16/52/b9971cef1a161b7d2c2f85a6c30fc2756163d59561c9677c4fa302c9f4fc/temporalio-1.12.0-cp39-abi3-macosx_11_0_arm64.whl", hash = "sha256:9426cf4fdad57d2e4a5dec9275bde88b2e5eb9d482f92398bfd343ba976736f4", size = 11628690, upload-time = "2025-05-30T16:28:35.728Z" },
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 ]
 
 [package.optional-dependencies]
@@ -2378,7 +2379,7 @@ trio-async = [
 ]
 
 [package.metadata]
-requires-dist = [{ name = "temporalio", specifier = ">=1.11.1,<2" }]
+requires-dist = [{ name = "temporalio", specifier = ">=1.12.0,<2" }]
 
 [package.metadata.requires-dev]
 bedrock = [{ name = "boto3", specifier = ">=1.34.92,<2" }]