diff --git a/data/ecosystems/p/polkadot.toml b/data/ecosystems/p/polkadot.toml
index aeed328e..d8d21279 100644
--- a/data/ecosystems/p/polkadot.toml
+++ b/data/ecosystems/p/polkadot.toml
@@ -1119,39 +1119,12 @@ url = "https://github.com/substrate-developer-hub/tcr-substrate"
 [[repo]]
 url = "https://github.com/SubstrateCourse-Term3/BitDAO"
 
-[[repo]]
-url = "https://github.com/SubstrateCourse-Term3/Team1"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse-Term3/Team2"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse-Term3/Team3"
-
 [[repo]]
 url = "https://github.com/SubstrateCourse-Term3/WhatSubs"
 
 [[repo]]
 url = "https://github.com/SubstrateCourse/substrate-kitties"
 
-[[repo]]
-url = "https://github.com/SubstrateCourse/team1"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse/team2"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse/team3"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse/team4"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse/team5"
-
-[[repo]]
-url = "https://github.com/SubstrateCourse/team6"
-
 [[repo]]
 url = "https://github.com/SubstrateOrg/archer-in-zoo"
 
@@ -1170,21 +1143,6 @@ url = "https://github.com/SubstrateOrg/Sailing"
 [[repo]]
 url = "https://github.com/SubstrateOrg/substrate-nft"
 
-[[repo]]
-url = "https://github.com/SubstrateOrg/Team1"
-
-[[repo]]
-url = "https://github.com/SubstrateOrg/Team2"
-
-[[repo]]
-url = "https://github.com/SubstrateOrg/Team3"
-
-[[repo]]
-url = "https://github.com/SubstrateOrg/Team4"
-
-[[repo]]
-url = "https://github.com/SubstrateOrg/Team6"
-
 [[repo]]
 url = "https://github.com/sunqiLoveSnow/substrate2.0-nft"