diff --git a/dune-project b/dune-project
index 3d1e176..3e5da38 100644
--- a/dune-project
+++ b/dune-project
@@ -14,5 +14,5 @@
   (authors "Bartosz Taudul" "Simon Cruanes")
   (depends
     (ocaml (>= 4.08))
-    (trace (and (>= 0.3) (< 0.4))))
+    (trace (and (>= 0.4) (< 0.5))))
   (synopsis "Client bindings to the Tracy profiler (v0.9.1)"))
diff --git a/tracy-client.opam b/tracy-client.opam
index bb1de7a..7101041 100644
--- a/tracy-client.opam
+++ b/tracy-client.opam
@@ -10,7 +10,7 @@ bug-reports: "https://github.com/imandra-ai/ocaml-tracy/issues"
 depends: [
   "dune" {>= "2.7"}
   "ocaml" {>= "4.08"}
-  "trace" {>= "0.3" & < "0.4"}
+  "trace" {>= "0.4" & < "0.5"}
   "odoc" {with-doc}
 ]
 build: [