diff --git a/Cargo.toml b/Cargo.toml
index 20c13b2..7f86b3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "efi_signer"
-version = "0.2.4"
+version = "0.2.5"
 edition = "2021"
 authors = ["Li Chaoran <pkwarcraft@gmail.com>"]
 description = "A crates for signing and parsing EFI image"
@@ -11,25 +11,23 @@ readme = "README.md"
 
 [dependencies]
 byteorder = "1.4.3"
-cms = { version = "0.2.1", features = ["pem"] }
-der = "0.7.2"
-digest = "0.10.6"
+cms = { version = "0.2.2", features = ["pem"] }
+der = "0.7.8"
+digest = "0.10.7"
 goblin = "0.6.1"
 log = "0.4.17"
-md-5 = "0.10.5"
+md-5 = "0.10.6"
 openssl = "0.10.52"
 openssl-sys = "0.9.87"
-picky = { version = "7.0.0-rc.5", features = ["pkcs7", "wincert", "ec", "time_conversion", "ctl", "ctl_http_fetch"] }
-picky-asn1-x509 = "0.9.0"
-pkcs7 = "0.4.0"
+picky = { version = "7.0.0-rc.8", features = ["pkcs7", "wincert", "time_conversion", "ctl", "ctl_http_fetch"] }
+picky-asn1-x509 = "0.12.0"
 serde = "1.0.159"
-sha1 = "0.10.5"
-sha2 = "0.10.6"
+sha1 = "0.10.6"
+sha2 = "0.10.8"
 snafu = { version = "0.7.4", features = ["backtraces", "backtraces-impl-std", "unstable-provider-api"] }
-x509-cert = "0.2.1"
+x509-cert = "0.2.4"
 
 
 [dev-dependencies]
 clap = { version = "4.2.4", features = ["derive"] }
 env_logger = "0.10.0"
-
diff --git a/examples/main.rs b/examples/main.rs
index 923fb04..a928137 100644
--- a/examples/main.rs
+++ b/examples/main.rs
@@ -66,10 +66,10 @@ struct Parse {
 #[derive(Args)]
 struct Sign {
     #[arg(long, short, required(true))]
-    #[arg(help = "Private key in p7b format")]
+    #[arg(help = "Private key in PEM format")]
     key: String,
     #[arg(long, short, required(true))]
-    #[arg(help = "Certificate in PEM format")]
+    #[arg(help = "Certificate in pkcs7 format")]
     cert: String,
     #[arg(long, short, required(false))]
     #[arg(help = "Whether to generate a detach signature")]
diff --git a/rust-toolchain b/rust-toolchain
new file mode 100644
index 0000000..67eb03d
--- /dev/null
+++ b/rust-toolchain
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly-2023-08-08"