diff --git a/coq-lambda-rust.opam b/coq-lambda-rust.opam
index 9e6c03b76ee9ae5e2bd0850b6b074a3414c3ae09..0344def4df38c37c63f3ce99b5d5003cdee46ab6 100644
--- a/coq-lambda-rust.opam
+++ b/coq-lambda-rust.opam
@@ -15,7 +15,7 @@ This branch uses a proper weak memory model.
 """
 
 depends: [
-  "coq-gpfsl" { (= "dev.2021-05-25.0.6bbdfeb5") | (= "dev") }
+  "coq-gpfsl" { (= "dev.2021-05-27.0.193d6230") | (= "dev") }
 ]
 
 build: [make "-j%{jobs}%"]