diff --git a/Cargo.lock b/Cargo.lock
index d99f6014..1663c13b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -166,9 +166,9 @@ dependencies = [
 
 [[package]]
 name = "crypto-bigint"
-version = "0.6.0-rc.3"
+version = "0.6.0-rc.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2d31bf42cf9e9b9ca3a405bf1f26fae560617ff51366c347086ec29909a291d"
+checksum = "215e6111ec3e5e1fec43705a06f3a1ac89e93207bbc437a89ced1a0a18c01f7a"
 dependencies = [
  "hybrid-array",
  "num-traits",
diff --git a/balloon-hash/Cargo.toml b/balloon-hash/Cargo.toml
index d1e2f60b..6c855a63 100644
--- a/balloon-hash/Cargo.toml
+++ b/balloon-hash/Cargo.toml
@@ -15,7 +15,7 @@ rust-version = "1.73"
 
 [dependencies]
 digest = { version = "=0.11.0-pre.9", default-features = false }
-crypto-bigint = { version = "0.6.0-rc.3", default-features = false, features = ["hybrid-array"] }
+crypto-bigint = { version = "0.6.0-rc.4", default-features = false, features = ["hybrid-array"] }
 
 # optional dependencies
 password-hash = { version = "0.6.0-rc.0", default-features = false, optional = true }