diff --git a/Cargo.lock b/Cargo.lock
index 2612b585..cbf20fd6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -458,9 +458,9 @@ dependencies = [
 
 [[package]]
 name = "opaque-debug"
-version = "0.3.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
+checksum = "24dbb6c402d5d2af34bf064f5791bb03c224e145aa59f24ebc411ca93523b86e"
 
 [[package]]
 name = "pmac"
diff --git a/belt-dwp/Cargo.toml b/belt-dwp/Cargo.toml
index 4fb4a6fb..ef3d8a9d 100644
--- a/belt-dwp/Cargo.toml
+++ b/belt-dwp/Cargo.toml
@@ -15,7 +15,7 @@ rust-version = "1.85"
 aead = { version = "0.6.0-rc.10", default-features = false }
 belt-block = { version = "0.2.0-rc.3" }
 belt-ctr = { version = "0.2.0-rc.3" }
-opaque-debug = { version = "0.3" }
+opaque-debug = { version = "0.4" }
 subtle = { version = "2", default-features = false }
 universal-hash = { version = "0.6.0-rc.10" }
 zeroize = { version = "1.8", default-features = false, optional = true }