diff --git a/coq-iris.opam b/coq-iris.opam
index f32425b7d2b87825e6236182cfed4570458c5c5c..87c09486f438be63161ccd7c7e9b354c206bb2d8 100644
--- a/coq-iris.opam
+++ b/coq-iris.opam
@@ -14,7 +14,7 @@ iris.prelude, iris.algebra, iris.si_logic, iris.bi, iris.proofmode, iris.base_lo
 
 depends: [
   "coq" { (>= "8.11" & < "8.14~") | (= "dev") }
-  "coq-stdpp" { (= "dev.2021-01-23.0.1f7d13f3") | (= "dev") }
+  "coq-stdpp" { (= "dev.2021-01-28.1.889d99ae") | (= "dev") }
 ]
 
 build: ["./make-package" "iris" "-j%{jobs}%"]
diff --git a/iris/algebra/list.v b/iris/algebra/list.v
index a200489aed50fd7f3eb1f033996e78013e839e56..5e7aea7323456360f40001eacdd6b7ce7b270a02 100644
--- a/iris/algebra/list.v
+++ b/iris/algebra/list.v
@@ -138,7 +138,7 @@ Qed.
 (** Functor *)
 Lemma list_fmap_ext_ne {A} {B : ofe} (f g : A → B) (l : list A) n :
   (∀ x, f x ≡{n}≡ g x) → f <$> l ≡{n}≡ g <$> l.
-Proof. intros Hf. by apply Forall2_fmap, Forall_Forall2, Forall_true. Qed.
+Proof. intros Hf. by apply Forall2_fmap, Forall_Forall2_diag, Forall_true. Qed.
 Definition listO_map {A B} (f : A -n> B) : listO A -n> listO B :=
   OfeMor (fmap f : listO A → listO B).
 Global Instance listO_map_ne A B : NonExpansive (@listO_map A B).