diff --git a/ruby-sdk/ext/eppo_client/Cargo.toml b/ruby-sdk/ext/eppo_client/Cargo.toml
index 47ed8c1e..d6a41772 100644
--- a/ruby-sdk/ext/eppo_client/Cargo.toml
+++ b/ruby-sdk/ext/eppo_client/Cargo.toml
@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 env_logger = { version = "0.11.3", features = ["unstable-kv"] }
 eppo_core = { version = "4.1.1", features = ["vendored"] }
 log = { version = "0.4.21", features = ["kv_serde"] }
-magnus = { version = "0.6.4" }
+magnus = { version = "0.7.1" }
 serde = { version = "1.0.203", features = ["derive"] }
 serde_magnus = "0.8.1"
 rb-sys = "0.9.102"