diff --git a/Cargo.lock b/Cargo.lock
index c920701..4497dbe 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -147,9 +147,9 @@ checksum = "b0fc239e0f6cb375d2402d48afb92f76f5404fd1df208a41930ec81eda078bea"
 
 [[package]]
 name = "clap"
-version = "4.2.7"
+version = "4.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34d21f9bf1b425d2968943631ec91202fe5e837264063503708b83013f8fc938"
+checksum = "c27cdf28c0f604ba3f512b0c9a409f8de8513e4816705deb0498b627e7c3a3fd"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -168,22 +168,21 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.2.7"
+version = "4.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "914c8c79fb560f238ef6429439a30023c862f7a28e688c58f7203f12b29970bd"
+checksum = "08a9f1ab5e9f01a9b81f202e8562eb9a10de70abf9eaeac1be465c28b75aa4aa"
 dependencies = [
  "anstream",
  "anstyle",
- "bitflags",
  "clap_lex",
  "strsim",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "4.2.0"
+version = "4.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9644cd56d6b87dbe899ef8b053e331c0637664e9e21a33dfcdc36093f5c5c4"
+checksum = "54a9bb5758fc5dfe728d1019941681eccaf0cf8a4189b692a0ee2f2ecf90a050"
 dependencies = [
  "heck 0.4.1",
  "proc-macro2",
@@ -193,9 +192,9 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.4.1"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a2dd5a6fe8c6e3502f568a6353e5273bbb15193ad9a89e457b9970798efbea1"
+checksum = "2da6da31387c7e4ef160ffab6d5e7f00c42626fe39aea70a7b0f1773f7dd6c1b"
 
 [[package]]
 name = "colorchoice"
diff --git a/Cargo.toml b/Cargo.toml
index bbb50d6..8cb7f7a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ categories = ["network-programming", "database"]
 bgpfu-lib = {path = "./lib", version = "0.1.0-alpha.2"}
 # external
 anyhow = "^1.0"
-clap = {version = "^4.0", features = ["derive"]}
+clap = {version = "^4.3", features = ["derive"]}
 clap-verbosity-flag = "2.0"
 generic-ip = "0.1.0-rc.2"
 irrc = "0.1.0-rc.5"