diff --git a/requirements.txt b/requirements.txt
index 14e43fa5..2c55c04b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # Dependencies required for installation (keep in sync with setup.py)
 requests >= 2.16.2
 six >= 1.12.0
-stone >= 2.*
+stone >= 2
 # Other dependencies for development
 ply
 pytest
diff --git a/setup.py b/setup.py
index 70c63adb..efbd57de 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@
 install_reqs = [
     'requests >= 2.16.2',
     'six >= 1.12.0',
-    'stone >= 2.*',
+    'stone >= 2',
 ]
 
 setup_requires = [
diff --git a/test/requirements.txt b/test/requirements.txt
index 174a5340..c6433e33 100644
--- a/test/requirements.txt
+++ b/test/requirements.txt
@@ -2,4 +2,4 @@ pytest
 mock
 pytest-mock
 coverage
-stone>=2.*
\ No newline at end of file
+stone>=2