diff --git a/hubconf.py b/hubconf.py
index 61ff4cc4f239..2266cab4c0e2 100644
--- a/hubconf.py
+++ b/hubconf.py
@@ -14,7 +14,7 @@
 from utils.general import set_logging
 from utils.google_utils import attempt_download
 
-dependencies = ['torch', 'yaml', 'pillow']
+dependencies = ['torch', 'PyYAML>=5.3', 'Pillow']
 set_logging()
 
 
diff --git a/requirements.txt b/requirements.txt
index d04638f18e87..c5e6a6119321 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Cython
 matplotlib>=3.2.2
 numpy>=1.18.5
 opencv-python>=4.1.2
-pillow
+Pillow
 PyYAML>=5.3
 scipy>=1.4.1
 tensorboard>=2.2