diff --git a/opam b/opam
index 84c2346575bdfbf2d5616acdf97234267d890223..39c7f635b4d8f52253efe976510a9ad412860a61 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.2019-11-22.2.a979391c") | (= "dev") }
+  "coq-iris" { (= "dev.2019-12-13.0.335ff6d7") | (= "dev") }
 ]