diff --git a/pyproject.toml b/pyproject.toml
index fc7d7f2..7703231 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ python = "^3.8"
 
 python_dateutil = ">=2.5.3"
 setuptools = ">=72.1.0"
-urllib3 = ">=1.25.3, < 2.1.0"
+urllib3 = ">=1.25.3, < 3.0.0"
 pydantic = ">=2"
 typing-extensions = ">=4.7.1"
 
diff --git a/requirements.txt b/requirements.txt
index 9cfcf9c..743e9b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 python_dateutil >= 2.5.3
 setuptools >= 72.1.0
-urllib3 >= 1.25.3, < 2.1.0
+urllib3 >= 1.25.3, < 3.0.0
 pydantic >= 2
-typing-extensions >= 4.7.1
\ No newline at end of file
+typing-extensions >= 4.7.1
diff --git a/setup.py b/setup.py
index f27748a..75f11d5 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
 VERSION = "5.1.1"
 PYTHON_REQUIRES = ">=3.8"
 REQUIRES = [
-    "urllib3 >= 1.25.3, < 2.1.0",
+    "urllib3 >= 1.25.3, < 3.0.0",
     "python_dateutil >= 2.5.3",
     "setuptools >= 72.1.0",
     "pydantic >= 2",