diff --git a/pyproject.toml b/pyproject.toml
index 3b34e8d..c8be280 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ readme = "README.md"
 requires-python = ">=3.11"
 license = "MIT"
 authors = [{ name = "John Osumi" }]
-dependencies = ["msgpack==1.2.2"]
+dependencies = ["msgpack==1.2.3"]
 
 [project.scripts]
 remote-ssh-tunnel-rpc = "remote_ssh_tunnel.cli:main"
diff --git a/requirements.txt b/requirements.txt
index 9258cbe..9f7f07b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-msgpack==1.2.2
+msgpack==1.2.3