diff --git a/coq-iris.opam b/coq-iris.opam
index 73de20ba15bea37736ef06f8778ebf58b081154e..e88b762c11d3668a4e28a30e8f456e3515a8975c 100644
--- a/coq-iris.opam
+++ b/coq-iris.opam
@@ -15,7 +15,7 @@ iris.prelude, iris.algebra, iris.si_logic, iris.bi, iris.proofmode, iris.base_lo
 
 depends: [
   "coq" { (>= "8.12" & < "8.15~") | (= "dev") }
-  "coq-stdpp" { (= "dev.2021-07-28.7.a6d2be96") | (= "dev") }
+  "coq-stdpp" { (= "dev.2021-09-06.1.64419715") | (= "dev") }
 ]
 
 build: ["./make-package" "iris" "-j%{jobs}%"]