diff --git a/Cargo.lock b/Cargo.lock
index 0576f26d..81b1da55 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1085,9 +1085,9 @@ dependencies = [
 
 [[package]]
 name = "bigtools"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e7e3e2801e665559947318628677a989ee986fd6f18ac572e332127e72e27aa"
+checksum = "3991a416f05e8b4b5dc3c21bf86840217cd2fe2f995673d82698803d8e229c61"
 dependencies = [
  "attohttpc",
  "bincode",
diff --git a/exon/exon-bigwig/Cargo.toml b/exon/exon-bigwig/Cargo.toml
index 39116432..503bef8f 100644
--- a/exon/exon-bigwig/Cargo.toml
+++ b/exon/exon-bigwig/Cargo.toml
@@ -13,7 +13,7 @@ arrow = { workspace = true }
 exon-common = { path = "../exon-common", version = "0.22.2" }
 noodles = { workspace = true, features = ["core"] }
 futures = { workspace = true }
-bigtools = "0.4.2"
+bigtools = "0.4.3"
 object_store = { workspace = true }
 tokio = { workspace = true }
 tokio-util = { workspace = true }