diff --git a/cadence/contracts/TopShot.cdc b/cadence/contracts/TopShot.cdc
index 66b745c..a36b72b 100644
--- a/cadence/contracts/TopShot.cdc
+++ b/cadence/contracts/TopShot.cdc
@@ -1,3 +1,5 @@
+// See https://github.com/dapperlabs/nba-smart-contracts/tree/master/contracts for the latest official version of the TopShot contracts
+
 /*
     Description: Central Smart Contract for NBA TopShot
 
diff --git a/cadence/contracts/TopShotLocking.cdc b/cadence/contracts/TopShotLocking.cdc
index 82018ad..921d141 100644
--- a/cadence/contracts/TopShotLocking.cdc
+++ b/cadence/contracts/TopShotLocking.cdc
@@ -1,3 +1,5 @@
+// See https://github.com/dapperlabs/nba-smart-contracts/tree/master/contracts for the latest official version of the TopShot contracts
+
 import NonFungibleToken from 0xf8d6e0586b0a20c7
 
 access(all) contract TopShotLocking {