diff --git a/geneit_backend/Cargo.lock b/geneit_backend/Cargo.lock
index 379f8f1..e14f831 100644
--- a/geneit_backend/Cargo.lock
+++ b/geneit_backend/Cargo.lock
@@ -744,9 +744,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.38"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed93b9805f8ba930df42c2590f05453d5ec36cbb85d018868a5b24d31f6ac000"
+checksum = "40b6887a1d8685cebccf115538db5c0efe625ccac9696ad45c409d96566e910f"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -754,9 +754,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.38"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "379026ff283facf611b0ea629334361c4211d1b12ee01024eec1591133b04120"
+checksum = "e0c66c08ce9f0c698cbce5c0279d0bb6ac936d8674174fe48f736533b964f59e"
 dependencies = [
  "anstream",
  "anstyle",
@@ -766,9 +766,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.32"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09176aae279615badda0765c0c0b3f6ed53f4709118af73cf4655d85d1530cd7"
+checksum = "d2c7947ae4cc3d851207c1adb5b5e260ff0cca11446b1d6d1423788e442257ce"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/geneit_backend/Cargo.toml b/geneit_backend/Cargo.toml
index 8027258..b76b741 100644
--- a/geneit_backend/Cargo.toml
+++ b/geneit_backend/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2024"
 [dependencies]
 log = "0.4.27"
 env_logger = "0.11.8"
-clap = { version = "4.5.38", features = ["derive", "env"] }
+clap = { version = "4.5.40", features = ["derive", "env"] }
 lazy_static = "1.5.0"
 lazy-regex = "3.4.1"
 anyhow = "1.0.98"