diff --git a/requirements.txt b/requirements.txt
index cb5ae86..3b877d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,13 +1,13 @@
-flask==1.1.2
-numpy==1.19.5
-pillow==8.0.1
-scikit-image==0.17.2
-torch~=1.7.0
-torchvision~=0.8.1
-waitress==1.4.4
-tqdm==4.51.0
-requests==2.24.0
-scipy==1.5.4
-pymatting==1.1.1
-filetype==1.0.7
-hsh==1.1.0
+flask>=1.1.2
+numpy>=1.19.5
+pillow>=8.0.1
+scikit-image>=0.17.2
+torch>=1.7.0
+torchvision>=0.8.1
+waitress>=1.4.4
+tqdm>=4.51.0
+requests>=2.24.0
+scipy>=1.5.4
+pymatting>=1.1.1
+filetype>=1.0.7
+hsh>=1.1.0