diff --git a/pyproject.toml b/pyproject.toml
index 498cd38..8e22b77 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ test = [
   "betamax >=0.8, <0.9",
   "coverage>=7.6.10",
   "pytest>=8.3.4",
-  "urllib3 ==1.*"
+  "urllib3 ==2.*"
 ]
 type = [
   "pyright>=1.1.393",
diff --git a/uv.lock b/uv.lock
index a0f3ea3..95fe80c 100644
--- a/uv.lock
+++ b/uv.lock
@@ -325,7 +325,7 @@ test = [
     { name = "betamax", specifier = ">=0.8,<0.9" },
     { name = "coverage", specifier = ">=7.6.10" },
     { name = "pytest", specifier = ">=8.3.4" },
-    { name = "urllib3", specifier = "==1.*" },
+    { name = "urllib3", specifier = "==2.*" },
 ]
 type = [
     { name = "pyright", specifier = ">=1.1.393" },
@@ -571,11 +571,11 @@ wheels = [
 
 [[package]]
 name = "urllib3"
-version = "1.26.20"
+version = "2.5.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/e4/e8/6ff5e6bc22095cfc59b6ea711b687e2b7ed4bdb373f7eeec370a97d7392f/urllib3-1.26.20.tar.gz", hash = "sha256:40c2dc0c681e47eb8f90e7e27bf6ff7df2e677421fd46756da1161c39ca70d32", size = 307380 }
+sdist = { url = "https://files.pythonhosted.org/packages/15/22/9ee70a2574a4f4599c47dd506532914ce044817c7752a79b6a51286319bc/urllib3-2.5.0.tar.gz", hash = "sha256:3fc47733c7e419d4bc3f6b3dc2b4f890bb743906a30d56ba4a5bfa4bbff92760", size = 393185 }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/33/cf/8435d5a7159e2a9c83a95896ed596f68cf798005fe107cc655b5c5c14704/urllib3-1.26.20-py2.py3-none-any.whl", hash = "sha256:0ed14ccfbf1c30a9072c7ca157e4319b70d65f623e91e7b32fadb2853431016e", size = 144225 },
+    { url = "https://files.pythonhosted.org/packages/a7/c2/fe1e52489ae3122415c51f387e221dd0773709bad6c6cdaa599e8a2c5185/urllib3-2.5.0-py3-none-any.whl", hash = "sha256:e6b01673c0fa6a13e374b50871808eb3bf7046c4b125b216f6bf1cc604cff0dc", size = 129795 },
 ]
 
 [[package]]