diff --git a/opam b/opam
index 95c4b698500fc642de51d5697e58f2bf553e8809..bed88b46d0002fb0de4f308fa9a7e152e6718129 100644
--- a/opam
+++ b/opam
@@ -11,5 +11,5 @@ install: [make "install"]
 remove: ["rm" "-rf" "%{lib}%/coq/user-contrib/iris"]
 depends: [
   "coq" { (>= "8.7.1" & < "8.9~") | (= "dev") }
-  "coq-stdpp" { (= "dev.2018-04-18.1.e54646d4") | (= "dev") }
+  "coq-stdpp" { (= "dev.2018-04-21.1.49a03d40") | (= "dev") }
 ]