diff --git a/opam b/opam
index acb47be8c1a85bfc9109a74007e72fbf59676de3..3d59af3485e011545fd474238e8569a0b412285e 100644
--- a/opam
+++ b/opam
@@ -9,5 +9,5 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/igps" ]
 depends: [
-  "coq-iris" { (= "branch.gen_proofmode.2018-03-09.0") | (= "dev") }
+  "coq-iris" { (= "branch.gen_proofmode.2018-03-13.1") | (= "dev") }
 ]