diff --git a/pyproject.toml b/pyproject.toml
index 37a541178..1da3dc173 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
     "PySocks",
     "requests>=2.32.3,<3.0.0",
     "requests-unixsocket>=0.4.1",
-    "typing-extensions",
+    "typing-extensions>=4.0.0,<5.0.0",
 ]
 
 [project.urls]
diff --git a/uv.lock b/uv.lock
index 303023b99..c1523b134 100644
--- a/uv.lock
+++ b/uv.lock
@@ -95,7 +95,7 @@ requires-dist = [
     { name = "pysocks" },
     { name = "requests", specifier = ">=2.32.3,<3.0.0" },
     { name = "requests-unixsocket", specifier = ">=0.4.1" },
-    { name = "typing-extensions" },
+    { name = "typing-extensions", specifier = ">=4.0.0,<5.0.0" },
 ]
 
 [package.metadata.requires-dev]