diff --git a/beacon_node/eth2-libp2p/Cargo.toml b/beacon_node/eth2-libp2p/Cargo.toml
index 5ec2531cf2..5e1a92f24e 100644
--- a/beacon_node/eth2-libp2p/Cargo.toml
+++ b/beacon_node/eth2-libp2p/Cargo.toml
@@ -7,9 +7,10 @@ edition = "2018"
 [dependencies]
 clap = "2.33.0"
 hex = "0.3"
-#SigP repository
-libp2p =  { git = "https://github.com/SigP/rust-libp2p", rev = "2a9ded92db30dab7d3530c597a0a3b3458a7dfb7" }
-enr =  { git = "https://github.com/SigP/rust-libp2p/", rev = "2a9ded92db30dab7d3530c597a0a3b3458a7dfb7", features = ["serde"] }
+# rust-libp2p is presently being sourced from a Sigma Prime fork of the
+# `libp2p/rust-libp2p` repository.
+libp2p =  { git = "https://github.com/sigp/rust-libp2p", rev = "2a9ded92db30dab7d3530c597a0a3b3458a7dfb7" }
+enr =  { git = "https://github.com/sigp/rust-libp2p/", rev = "2a9ded92db30dab7d3530c597a0a3b3458a7dfb7", features = ["serde"] }
 types = { path =  "../../eth2/types" }
 serde = "1.0.102"
 serde_derive = "1.0.102"