diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0bc57c96f3a0ef5de51bb7580fbe7f29f851f004..6758a0c68514ad5c591c84be6201a0506eae8b60 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,6 +33,15 @@ build-coq.dev:
     OPAM_PINS: "coq version dev"
     VALIDATE: "1"
 
+build-coq.8.9.dev:
+  <<: *template
+  variables:
+    OPAM_PINS: "coq version 8.9.dev"
+    TIMING_PROJECT: "iris"
+    TIMING_CONF: "coq-8.9.dev"
+  tags:
+  - fp-timing
+
 build-coq.8.8.2:
   <<: *template
   variables:
diff --git a/opam b/opam
index 1f9b06cbe46da769194d39710c057adaafd1666d..3a3fc56c324668262cf770e577347279a31f10ab 100644
--- a/opam
+++ b/opam
@@ -10,6 +10,6 @@ build: [make "-j%{jobs}%"]
 install: [make "install"]
 remove: ["rm" "-rf" "%{lib}%/coq/user-contrib/iris"]
 depends: [
-  "coq" { (>= "8.7.1" & < "8.9~") | (= "dev") }
-  "coq-stdpp" { (= "dev.2018-10-04.0.18c2d6e8") | (= "dev") }
+  "coq" { (>= "8.7.1" & < "8.10~") | (= "dev") }
+  "coq-stdpp" { (= "dev.2018-10-15.1.b7f1f6b1") | (= "dev") }
 ]