diff --git a/examples/graphsage/README.md b/examples/graphsage/README.md
index b2d293efc7f5a1ee30185b7a50e2e4729859ace1..6eb17f6cfec52194cf499d6a1273dc0e9b89d555 100644
--- a/examples/graphsage/README.md
+++ b/examples/graphsage/README.md
@@ -12,6 +12,7 @@ The reddit dataset should be downloaded from the following links and placed in d
 
 ### Dependencies
 
+- sklearn
 - paddlepaddle>=1.4 (The speed can be faster in 1.5.)
 - pgl