diff --git a/chapters/8A.ipynb b/chapters/2-2.ipynb
similarity index 99%
rename from chapters/8A.ipynb
rename to chapters/2-2.ipynb
index 0d28de5..c5f99f5 100644
--- a/chapters/8A.ipynb
+++ b/chapters/2-2.ipynb
@@ -971,4 +971,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}