diff --git a/opam b/opam
index d436ca35e4026a6c6759b81c760e9110c1d12402..5c9398ea32c4baab1b4fdb0bd3c555f7076a4bbf 100644
--- a/opam
+++ b/opam
@@ -12,5 +12,5 @@ remove: ["rm" "-rf" "%{lib}%/coq/user-contrib/iris"]
 depends: [
   "coq" { (>= "8.6.1" & < "8.8~") | (= "dev") }
   "coq-mathcomp-ssreflect" { (>= "1.6.1" & < "1.7~") | (= "dev") }
-  "coq-stdpp" { (= "dev.2017-12-08.0") | (= "dev") }
+  "coq-stdpp" { (= "dev.2017-12-18.2") | (= "dev") }
 ]