diff --git a/opam b/opam
index 58d3d8c61027ea2923b19aa58c63736db9f78ecc..087ccf4f59588ca8682fc9305e097a347a939e79 100644
--- a/opam
+++ b/opam
@@ -9,5 +9,6 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/igps" ]
 depends: [
-  "coq-iris" { (= "dev.2019-01-24.1.31029e66") | (= "dev") }
+  "coq" { (>= "8.8.2" & < "8.10~") | (= "dev") }
+  "coq-iris" { (= "dev.2019-01-28.2.bfd9a459") | (= "dev") }
 ]