diff --git a/Cargo.toml b/Cargo.toml
index fdadc88..9690c70 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,13 +11,13 @@ clap = "2.33"
 hex = "0.4"
 base64 = "0.13"
 sha2 = "0.10"
-lazy_static = "1.4.0"
+lazy_static = "1.4"
 serde_derive = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 josekit = "0.8"
-secmem-proc = "0.1.1"
-seckey = "0.11.2"
+secmem-proc = "0.1"
+seckey = "0.11"
 rust_util = { version = "0.6", features = ["use_clap"] }
 tokio = { version = "1.19", features = ["full"] }
 hyper = { version = "0.14", features = ["client", "server", "tcp", "http1", "http2"] }