diff --git a/opam b/opam
index 462c0bb68ecd716832465e1d39a5ee3484e86762..a61b448be4ba37eb749f18f1d05248a77b13fe80 100644
--- a/opam
+++ b/opam
@@ -11,5 +11,5 @@ install: [make "install"]
 remove: ["rm" "-rf" "%{lib}%/coq/user-contrib/iris"]
 depends: [
   "coq" { (>= "8.7.0" & < "8.9~") | (= "dev") }
-  "coq-stdpp" { (= "dev.2018-04-11.0") | (= "dev") }
+  "coq-stdpp" { (= "dev.2018-04-18.1.e54646d4") | (= "dev") }
 ]