diff --git a/opam b/opam
index 182ada388513bdb9dd758e1fb2802e5f063e1111..c7567d6d75e60a136478562dbb8eba9c1eb63328 100644
--- a/opam
+++ b/opam
@@ -11,5 +11,5 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/lrust'" ]
 depends: [
-  "coq-iris" { (= "dev.2018-04-18.1.1c09a14c") | (= "dev") }
+  "coq-iris" { (= "dev.2018-04-18.4.61a020cf") | (= "dev") }
 ]