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diff --git a/README.md b/README.md
index 07c93e18..02ebb65d 100644
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+++ b/README.md
@@ -227,6 +227,3 @@ Links and references
 - [Arachne PNR](https://github.com/cseed/arachne-pnr)
 - [VPR/VTR](https://verilogtorouting.org/)
 - [SymbiFlow](https://github.com/SymbiFlow/symbiflow-arch-defs)
-- [Gaffe](https://github.com/gaffe-logic/gaffe)
-- [KinglerPAR](https://github.com/rqou/KinglerPAR)
-