diff --git a/opam b/opam
index 295486ef449ea6726c6bb62e06d1c042735bbb51..3c841a39c251524bae86195bbcfc64d534cef55c 100644
--- a/opam
+++ b/opam
@@ -9,6 +9,6 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/iron" ]
 depends: [
-  "coq-iris" { (= "dev.2018-11-08.2.9eee9408") | (= "dev") }
+  "coq-iris" { (= "dev.2019-02-01.0.de7eab03") | (= "dev") }
 ]
 
diff --git a/theories/algebra/vfrac_auth.v b/theories/algebra/vfrac_auth.v
index 6a4ff897277b1e337694caec8e02d8bc246c1900..32dc76509fa7ecda24206a708d5af6a9ecd4f204 100644
--- a/theories/algebra/vfrac_auth.v
+++ b/theories/algebra/vfrac_auth.v
@@ -35,8 +35,8 @@ Definition vfrac_auth_frag {A : cmraT} (q : Qp) (x : A) : vfrac_authR A :=
 
 Typeclasses Opaque vfrac_auth_auth vfrac_auth_frag.
 
-Instance: Params (@vfrac_auth_auth) 2.
-Instance: Params (@vfrac_auth_frag) 2.
+Instance: Params (@vfrac_auth_auth) 2 := {}.
+Instance: Params (@vfrac_auth_frag) 2 := {}.
 
 Notation "●?{ q } a" := (vfrac_auth_auth q a) (at level 10, format "●?{ q }  a").
 Notation "◯?{ q } a" := (vfrac_auth_frag q a) (at level 10, format "◯?{ q }  a").
diff --git a/theories/bi/fracpred.v b/theories/bi/fracpred.v
index 092f262e683cd35f4e4fb0bfbab30267217decf4..5cff46f7a3e1d75ca36d2e32f364fa17c5bfead8 100644
--- a/theories/bi/fracpred.v
+++ b/theories/bi/fracpred.v
@@ -269,7 +269,7 @@ Class FObjective {PROP : bi} (P : fracPred PROP) :=
 Arguments FObjective {_} _%I.
 Arguments fobjective_at {_} _%I {_}.
 Hint Mode FObjective + ! : typeclass_instances.
-Instance: Params (@FObjective) 1.
+Instance: Params (@FObjective) 1 := {}.
 
 (** Primitive facts that cannot be deduced from the BI structure. *)
 Section bi_facts.
diff --git a/theories/iron_logic/fcinv.v b/theories/iron_logic/fcinv.v
index b19a3d48a5ce80f7769374f63c9f9cb3c381363d..23b29a93cb4aa394f6e6d2e22b703b493e71770e 100644
--- a/theories/iron_logic/fcinv.v
+++ b/theories/iron_logic/fcinv.v
@@ -49,7 +49,7 @@ Definition fcinv_aux `{ironInvG Σ, invG Σ} : seal fcinv_def. by eexists. Qed.
 Definition fcinv `{ironInvG Σ, invG Σ} := fcinv_aux.(unseal).
 Definition fcinv_eq `{ironInvG Σ, invG Σ} : fcinv = _ := fcinv_aux.(seal_eq).
 Arguments fcinv {_ _ _} _ _ _%I.
-Instance: Params (@fcinv) 5.
+Instance: Params (@fcinv) 5 := {}.
 
 Section fcinv.
 Context `{ironInvG Σ, invG Σ}.
diff --git a/theories/iron_logic/iron.v b/theories/iron_logic/iron.v
index fcb9174c8c2c7e907b9e84d5c6bda21be02dd72b..e35b967cc6b21757b801f0374cf708f87332a33b 100644
--- a/theories/iron_logic/iron.v
+++ b/theories/iron_logic/iron.v
@@ -53,13 +53,13 @@ Class Uniform `{ironInvG Σ} (P : ironProp Σ) :=
   uniform π1 π2 : P (Some (π1 ⋅ π2)) ⊣⊢ P (Some π1) ∗ perm π2.
 Arguments Uniform {_ _} _%I.
 Hint Mode Uniform + + ! : typeclass_instances.
-Instance: Params (@Uniform) 2.
+Instance: Params (@Uniform) 2 := {}.
 
 Class ExistPerm `{ironInvG Σ} (P : ironProp Σ) :=
   exist_perm : P None ⊢ False.
 Arguments ExistPerm {_ _} _%I.
 Hint Mode ExistPerm + - ! : typeclass_instances.
-Instance: Params (@ExistPerm) 2.
+Instance: Params (@ExistPerm) 2 := {}.
 
 Definition iron_fupd_def `{ironInvG Σ, invG Σ} (E1 E2 : coPset)
     (P : ironProp Σ) : ironProp Σ := FracPred (λ π2, ∀ π1,