diff --git a/README.rst b/README.rst
index d94f3e88..13d8d3a6 100644
--- a/README.rst
+++ b/README.rst
@@ -25,4 +25,4 @@ Unsupported Python Versions
 Python == 2.7, Python == 3.5.
 
 The last version of this library compatible with Python 2.7 and 3.5 is
-`google-api_core==1.31.1`.
+`google-api-core==1.31.1`.