diff --git a/opam b/opam
index 78b4fe3c88f76868791094fafb94e36f568dd710..89b8bb9ef33189b9e69aab805897148188e9b560 100644
--- a/opam
+++ b/opam
@@ -9,5 +9,5 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/igps" ]
 depends: [
-  "coq-iris" { (= "branch.gen_proofmode.2018-03-21.0") | (= "dev") }
+  "coq-iris" { (= "branch.gen_proofmode.2018-03-21.3") | (= "dev") }
 ]
diff --git a/theories/examples/list_lemmas.v b/theories/examples/list_lemmas.v
index c55e835553d48da56b4303c59184a20bbc8862bb..ec63bf5786755eb6778db1dbe2fb8b4443c303cc 100644
--- a/theories/examples/list_lemmas.v
+++ b/theories/examples/list_lemmas.v
@@ -1,4 +1,4 @@
-From iris.bi Require Import big_op.
+From iris.bi Require Import bi.
 From igps Require Import infrastructure.
 
 (* These lemmas probably belong somewhere higher. *)
@@ -44,4 +44,4 @@ Proof.
   by erewrite nth_replicate.
 Qed.    
 
-End lemmas.
\ No newline at end of file
+End lemmas.