diff --git a/setup.py b/setup.py
index 3220f82..54362e5 100644
--- a/setup.py
+++ b/setup.py
@@ -59,12 +59,12 @@ setup(
     ],
     python_requires=">=3.6",
     install_requires=[
-        'Click==7.1.2',
-        'arrow==0.17.0',
+        'Click>=7.1.2',
+        'arrow>=0.15.6',
     ],
     extras_require={
         ':sys_platform != "win32"': [
-            'sh==1.14.1',
+            'sh>=1.13.1',
         ],
     },
     keywords='gitlint git lint',