diff --git a/requirements.txt b/requirements.txt
index 8c5249c7..94cb187b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ futures>=3.0.5 ; python_version < '3'
 jsonschema>=2.6.0
 numpy>=1.10
 pathlib2>=2.3.0
-Pillow>=7.0.0
+Pillow>=7.0.0 ; python_version < '3.8'
 Pillow>=10.3.0 ; python_version >= '3.8'
 psutil>=3.4.2
 pyparsing>=2.0.3
@@ -16,7 +16,8 @@ pyjwt>=2.4.0,<2.11.0 ; python_version > '3.5'
 pyjwt>=1.6.4,<2.0.0 ; python_version <= '3.5'
 PyYAML>=3.12
 referencing<0.40 ; python_version >= '3.8'
-requests>=2.32.0
+requests>=2.20.0 ; python_version < '3.8'
+requests>=2.32.0 ; python_version >= '3.8'
 six>=1.16.0
 typing>=3.6.4 ; python_version < '3.5'
 urllib3>=1.21.1