diff --git a/setup.py b/setup.py
index 0689750..69080f4 100644
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,7 @@
     python_requires='>=3.7, <4',
     install_requires=[
         'pytest',
-        'lockable==0.7.1'
+        'lockable>=0.7.1,<0.8.0'
     ],
     extras_require={  # Optional
         'dev': ['nose', 'coveralls', 'pylint', 'coverage'],