diff --git a/src/lib/coapcore/Cargo.toml b/src/lib/coapcore/Cargo.toml
index b6d4024c2..d9a418aac 100644
--- a/src/lib/coapcore/Cargo.toml
+++ b/src/lib/coapcore/Cargo.toml
@@ -26,8 +26,8 @@ coap-message-utils = "0.3.3"
 coap-numbers = "0.2.3"
 hexlit = "0.5.5"
 lakers-crypto-rustcrypto = "0.7.2"
-liboscore = "0.2.1"
-liboscore-msgbackend = "0.2.1"
+liboscore = { git = "https://gitlab.com/oscore/liboscore/", rev = "5a39b7dbafa6aa6c6adb8e187b850f382858c401" }
+liboscore-msgbackend = { git = "https://gitlab.com/oscore/liboscore/", rev = "5a39b7dbafa6aa6c6adb8e187b850f382858c401" }
 
 minicbor = "0.23.0"
 heapless = "0.8.0"