Commit in requests repository - urllib1.25 branch: https://github.com/kennethreitz/requests/commit/d6b5b401e8d6141bcefa4a70ff1c836aa085120b
Pull request: https://github.com/kennethreitz/requests/pull/5063

diff --git a/requests/__init__.py b/requests/__init__.py
index bc168ee..9a899df 100644
--- a/requests/__init__.py
+++ b/requests/__init__.py
@@ -57,10 +57,10 @@ def check_compatibility(urllib3_version, chardet_version):
     # Check urllib3 for compatibility.
     major, minor, patch = urllib3_version  # noqa: F811
     major, minor, patch = int(major), int(minor), int(patch)
-    # urllib3 >= 1.21.1, <= 1.24
+    # urllib3 >= 1.21.1, <= 1.25
     assert major == 1
     assert minor >= 21
-    assert minor <= 24
+    assert minor <= 25

     # Check chardet for compatibility.
     major, minor, patch = chardet_version.split('.')[:3]
diff --git a/setup.py b/setup.py
index 10ce2c6..0d5d0cc 100755
--- a/setup.py
+++ b/setup.py
@@ -44,7 +44,7 @@ packages = ['requests']
 requires = [
     'chardet>=3.0.2,<3.1.0',
     'idna>=2.5,<2.9',
-    'urllib3>=1.21.1,<1.25',
+    'urllib3>=1.21.1,<1.26,!=1.25.0',
     'certifi>=2017.4.17'

 ]