diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e1de6de..b629d4ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+5.1.3
+-----
+
+- Remove `urllib3` version upper limit
+
 5.1.2
 -----
 
diff --git a/parsedmarc/__init__.py b/parsedmarc/__init__.py
index 015308f4..0b790613 100644
--- a/parsedmarc/__init__.py
+++ b/parsedmarc/__init__.py
@@ -38,7 +38,7 @@ from parsedmarc.utils import is_outlook_msg, convert_outlook_msg
 from parsedmarc.utils import timestamp_to_human, human_timestamp_to_datetime
 from parsedmarc.utils import parse_email
 
-__version__ = "5.1.2"
+__version__ = "5.1.3"
 
 logger = logging.getLogger("parsedmarc")
 logger.debug("parsedmarc v{0}".format(__version__))
diff --git a/requirements.txt b/requirements.txt
index 04e1e601..1778c37e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 dnspython
 expiringdict
-urllib3<1.24,>=1.21.1
+urllib3>=1.21.1
 requests
 publicsuffix
 xmltodict
diff --git a/setup.py b/setup.py
index 1939fc70..415f2007 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ from setuptools import setup
 from codecs import open
 from os import path
 
-__version__ = "5.1.2"
+__version__ = "5.1.3"
 
 description = "A Python package and CLI for parsing aggregate and " \
               "forensic DMARC reports"
@@ -93,7 +93,7 @@ setup(
     # requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
     install_requires=['dnspython', 'expiringdict', 'publicsuffix',
-                      'xmltodict', 'geoip2', 'urllib3<1.24,>=1.21.1',
+                      'xmltodict', 'geoip2', 'urllib3,>=1.21.1',
                       'requests', 'imapclient', 'mail-parser', 'dateparser',
                       'elasticsearch',
                       'elasticsearch-dsl', 'kafka-python'