diff --git a/clients/python/pyproject.toml b/clients/python/pyproject.toml
index 83eed5f6..a9c18c6b 100644
--- a/clients/python/pyproject.toml
+++ b/clients/python/pyproject.toml
@@ -11,7 +11,7 @@ dependencies = [
     "cronsim>=2.6",
     "grpcio>=1.67.1",
     "grpcio-health-checking>=1.67.1",
-    "msgpack>=1.0.0",
+    "msgpack>=1.2.1",
     "prometheus_client>=0.20",
     "protobuf>=5.28.3",
     "redis>=3.4.1",
diff --git a/uv.lock b/uv.lock
index 11342502..7c49dcce 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 2
+revision = 3
 requires-python = ">=3.11"
 resolution-markers = [
     "sys_platform == 'darwin' or sys_platform == 'linux'",
@@ -356,24 +356,21 @@ wheels = [
 
 [[package]]
 name = "msgpack"
-version = "1.1.1"
+version = "1.2.1"
 source = { registry = "https://pypi.devinfra.sentry.io/simple" }
 wheels = [
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:71ef05c1726884e44f8b1d1773604ab5d4d17729d8491403a705e649116c9558" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:36043272c6aede309d29d56851f8841ba907a1a3d04435e43e8a19928e243c1d" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a32747b1b39c3ac27d0670122b57e6e57f28eefb725e0b625618d1b59bf9d1e0" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:8a8b10fdb84a43e50d38057b06901ec9da52baac6983d3f709d8507f3889d43f" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp312-cp312-macosx_10_13_x86_64.whl", hash = "sha256:ae497b11f4c21558d95de9f64fff7053544f4d1a17731c866143ed6bb4591238" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:33be9ab121df9b6b461ff91baac6f2731f83d9b27ed948c5b9d1978ae28bf157" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp312-cp312-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:6f64ae8fe7ffba251fecb8408540c34ee9df1c26674c50c4544d72dbf792e5ce" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:a494554874691720ba5891c9b0b39474ba43ffb1aaf32a5dac874effb1619e1a" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp313-cp313-macosx_10_13_x86_64.whl", hash = "sha256:3765afa6bd4832fc11c3749be4ba4b69a0e8d7b728f78e68120a157a4c5d41f0" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp313-cp313-macosx_11_0_arm64.whl", hash = "sha256:8ddb2bcfd1a8b9e431c8d6f4f7db0773084e107730ecf3472f1dfe9ad583f3d9" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp313-cp313-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:196a736f0526a03653d829d7d4c5500a97eea3648aebfd4b6743875f28aa2af8" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:9d592d06e3cc2f537ceeeb23d38799c6ad83255289bb84c2e5792e5a8dea268a" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp314-cp314-macosx_11_0_arm64.whl", hash = "sha256:9bef030f66d0376aba8aed8e3fe05eab09abef8b6afe27182fac4ffd87168dcf" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp314-cp314-manylinux_2_17_aarch64.manylinux2014_aarch64.manylinux_2_31_aarch64.whl", hash = "sha256:cb8908c79b04884a6a6cfdf8b239380fb485b8dd61ae25a8bffb28ca00fb4361" },
-    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.1.1-cp314-cp314-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_31_x86_64.whl", hash = "sha256:e4b09afd7f8c72549735d183cf973890ef3b6f0dcf6148d5572a646b2f29b169" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:aded5bdf32609dc7987a49bbbd15a8ef096193f96dd8bbeb791de729e650acf5" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp311-cp311-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:146ee4e9ce80b365c6d4c47073da9da7bcec473e58194ceee5dd7620ace77e06" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:a28d076ca7c82b9c8728ad90b7147489449557038bed50e4241eb832395169b4" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:d3567748a5107cb40cdf66a275430c2f87c07777698f4bfd25c35f44d533258c" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp312-cp312-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:60926b75d00c8e816ef98f3034f484a8bc64242d66839cef4cf7e503142316a0" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:020e881a764b20d8d7ca1a54fc01b8175519d108e3c3f194fddc200bda95951a" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp313-cp313-macosx_11_0_arm64.whl", hash = "sha256:491cc39455ca765fad51fb451bf2915eb2cf41192ab5801ce8d67c1d614fe056" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp313-cp313-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:f310233ef7fb9c14e201c93639fe5f5260b005f56f0b29048e999c30935596cc" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp313-cp313-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:787c9bebb5833e8f6fc8abca3c0597683d8d87f56a8842b6b89c75a5f3176e2d" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp314-cp314-macosx_11_0_arm64.whl", hash = "sha256:810b916696c86ef0deb3b74588480224df4c1b071136c34183e4a2a4284d7ac7" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp314-cp314-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:ca0dacff965c47afdc3749a8469d7302a8f801d6a28758d55120d75e66ce6889" },
+    { url = "https://pypi.devinfra.sentry.io/wheels/msgpack-1.2.1-cp314-cp314-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:0e2bf9280bceb5efca998435904b5d3e9fdbcc11d90dc9df30aec7973252b720" },
 ]
 
 [[package]]
@@ -828,7 +825,7 @@ requires-dist = [
     { name = "datadog", marker = "extra == 'datadog'", specifier = ">=0.49" },
     { name = "grpcio", specifier = ">=1.67.1" },
     { name = "grpcio-health-checking", specifier = ">=1.67.1" },
-    { name = "msgpack", specifier = ">=1.0.0" },
+    { name = "msgpack", specifier = ">=1.2.1" },
     { name = "prometheus-client", specifier = ">=0.20" },
     { name = "protobuf", specifier = ">=5.28.3" },
     { name = "redis", specifier = ">=3.4.1" },