diff --git a/Cargo.lock b/Cargo.lock
index cef2ebf2..6aa1137e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1473,9 +1473,9 @@ dependencies = [
 
 [[package]]
 name = "typenum"
-version = "1.19.0"
+version = "1.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "562d481066bde0658276a35467c4af00bdc6ee726305698a55b86e61d7ad82bb"
+checksum = "40ce102ab67701b8526c123c1bab5cbe42d7040ccfd0f64af1a385808d2f43de"
 
 [[package]]
 name = "unarray"
diff --git a/lms/Cargo.toml b/lms/Cargo.toml
index dd2ad769..74bb6ea0 100644
--- a/lms/Cargo.toml
+++ b/lms/Cargo.toml
@@ -19,7 +19,7 @@ sha2 = "0.11"
 static_assertions = "1.1"
 rand_core = "0.10"
 signature = { version = "3.0.0-rc.10", features = ["alloc", "digest", "rand_core"] }
-typenum = { version = "1.17", features = ["const-generics"] }
+typenum = { version = "1.20", features = ["const-generics"] }
 zeroize = "1.8"
 
 [dev-dependencies]
diff --git a/slh-dsa/Cargo.toml b/slh-dsa/Cargo.toml
index fd668fae..b9104db9 100644
--- a/slh-dsa/Cargo.toml
+++ b/slh-dsa/Cargo.toml
@@ -25,7 +25,7 @@ rand_core = "0.10"
 sha2 = { version = "0.11", default-features = false }
 sha3 = { version = "0.11", default-features = false }
 signature = { version = "3.0.0-rc.10", features = ["rand_core"] }
-typenum = { version = "1.17", features = ["const-generics"] }
+typenum = { version = "1.20", features = ["const-generics"] }
 zerocopy = { version = "0.8", features = ["derive"] }
 
 # optional dependencies