diff --git a/opam b/opam
index 9b7b45e1cca09a38ad0a1a8534bba28ca0237e29..330eb9dadadf360b36c1489be18864321db3a50b 100644
--- a/opam
+++ b/opam
@@ -10,5 +10,5 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/lrust'" ]
 depends: [
-  "coq-gpfsl" { (= "dev.2019-11-21.0.16013a13") | (= "dev") }
+  "coq-gpfsl" { (= "dev.2019-12-09.0.babe5bb8") | (= "dev") }
 ]