diff --git a/Cargo.toml b/Cargo.toml
index ad05df4..b1bcc62 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ url = "2.1"
 chrono = { version = "0.4" }
 log = "0.4"
 flume = "0.10.14"
-flagsmith-flag-engine = "0.5.1"
+flagsmith-flag-engine = "0.6"
 
 [dev-dependencies]
 httpmock = "0.6"