diff --git a/setup.py b/setup.py
index 34fee93..c31470b 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@
     platforms='any',
     install_requires=[
         'protobuf>=3.0.0b2.post2',
-        'opentracing==2.0.0',
+        'opentracing>=2.0,<3.0',
         'six>=1.10.0,<2.0',
     ],
     extras_require={