diff --git a/requirements.txt b/requirements.txt
index 66fe7e3d..5301ca87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-requests>=2.11.0
-urllib3>=1.16, !=1.24.1, !=1.24.2
+requests>=2.11.0, <2.22.0
+urllib3>=1.16, <1.25, !=1.24.1, !=1.24.2
diff --git a/setup.py b/setup.py
index d83cdc07..7485f375 100644
--- a/setup.py
+++ b/setup.py
@@ -102,8 +102,8 @@ setup(
     license="GPLv2",
     python_requires=">=3.4",
     install_requires=[
-        "requests>=2.11.0",
-        "urllib3>=1.16, !=1.24.1, !=1.24.2",
+        "requests>=2.11.0, <2.22.0",
+        "urllib3>=1.16, <1.25, !=1.24.1, !=1.24.2",
     ],
     packages=[
         "gallery_dl",