diff --git a/coq-lambda-rust.opam b/coq-lambda-rust.opam
index 27668a4afc3d7fceaeed8067a403e499eb71c33d..00f4674ee54174c69d4bbc2a8b0437fe818e1efb 100644
--- a/coq-lambda-rust.opam
+++ b/coq-lambda-rust.opam
@@ -13,7 +13,7 @@ the type system, and safety proof for some Rust libraries.
 """
 
 depends: [
-  "coq-iris" { (= "dev.2022-01-13.0.5070f7f5") | (= "dev") }
+  "coq-iris" { (= "dev.2022-01-14.0.f85824ee") | (= "dev") }
 ]
 
 build: [make "-j%{jobs}%"]