diff --git a/Cargo.toml b/Cargo.toml
index d79e155dc03beb1018665b10cb3c5c9de4b754f4..b22eea2544e553c4a4f43ce37ffab0605f2626b7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,9 +22,9 @@ mio = { version = "0.7.0", package = "mio", features = ["udp", "tcp", "os-poll"]
 
 # protocol
 backtrace = "0.3"
+lazy_static = "1.4.0"
 
 # socket ffi
-lazy_static = { version = "1.4.0", optional = true}
 atomic_refcell = { version = "0.1.6", optional = true }
 
 [dev-dependencies]
@@ -39,6 +39,6 @@ crate-type = ["cdylib"]
 [features]
 default = ["ffi", "ffi_socket_api"] # // "session_optimization", 
 ffi = [] # see src/ffi.rs
-ffi_socket_api = ["ffi", "lazy_static", "atomic_refcell"]
+ffi_socket_api = ["ffi", "atomic_refcell"]
 endpoint_logging = [] # see src/macros.rs
 session_optimization = [] # see src/runtime/setup.rs
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