diff --git a/coq-lambda-rust.opam b/coq-lambda-rust.opam
index 65c16c0e759edb7e107934a55231d354a8bc64c9..851f55e8bb2d7488fb85d2ad464a7883606b262a 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.2021-06-27.0.bf367fe7") | (= "dev") }
+  "coq-gpfsl" { (= "dev.2021-07-16.0.f5655829") | (= "dev") }
 ]
 
 build: [make "-j%{jobs}%"]