diff --git a/function-timer/Cargo.toml b/function-timer/Cargo.toml
index c67049f..5c8241a 100644
--- a/function-timer/Cargo.toml
+++ b/function-timer/Cargo.toml
@@ -39,6 +39,6 @@ metrics = "0.24"
 
 [dev-dependencies]
 trybuild = "1.0"
-metrics-util = "0.19"
-metrics-exporter-prometheus = { version = "0.16", default-features = false }
+metrics-util = "0.20"
+metrics-exporter-prometheus = { version = "0.17", default-features = false }
 futures-test = "0.3"