1 files changed, 1 insertions, 1 deletions
diff --git a/README.md b/README.md
index 76c443fd..01d2850c 100755
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Instructions for implementing each feature follow.
             pass
     ```
 
-    See Python standard library's ``optparse`` documentation: http://docs.python.org/lib/optparse-defining-options.html
+    See Python standard library's `optparse` documentation: https://docs.python.org/3/library/optparse.html
 
 
 Tutorials