diff --git a/Cargo.toml b/Cargo.toml
index 6104d63..69b43ce 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,7 +48,7 @@ hashbrown = "0.17"
 bigdecimal = { version = "0.4", optional = true, default-features = false }
 float-cmp = { version = "0.10", optional = true }
 indexmap = { version = "2", optional = true, default-features = false }
-num-bigint = { version = "0.4", optional = true, default-features = false }
+num-bigint = { version = "0.5", optional = true, default-features = false }
 once_cell = { version = "1", optional = true, default-features = false, features = ["alloc", "critical-section"] }
 rapidhash = { version = "4", optional = true, default-features = false }
 regex = { version = "1", optional = true }