diff --git a/setup.cfg b/setup.cfg
index 1e476c140..c1013760f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -36,7 +36,7 @@ packages = find:
 include_package_data = true
 zip_safe = false
 install_requires =
-    urllib3
+    urllib3<2.0
     certifi
     wrapt>=1.14.1
 test_suite=tests
@@ -71,7 +71,7 @@ tests_require =
     py-cpuinfo==3.3.0
     statistics==1.0.3.5
 
-    urllib3
+    urllib3<2.0
     certifi
     Jinja2
     Logbook
diff --git a/tests/requirements/reqs-base.txt b/tests/requirements/reqs-base.txt
index 9fe6205c0..e3166f129 100644
--- a/tests/requirements/reqs-base.txt
+++ b/tests/requirements/reqs-base.txt
@@ -18,7 +18,7 @@ jsonschema==3.2.0 ; python_version == '3.6'
 jsonschema==4.17.3 ; python_version > '3.6'
 
 
-urllib3
+urllib3<2.0
 certifi
 Logbook
 mock