diff --git a/Cargo.lock b/Cargo.lock
index d501e9e..639ff3e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -194,9 +194,9 @@ dependencies = [
 
 [[package]]
 name = "bio-types"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d45749b87f21808051025e9bf714d14ff4627f9d8ca967eade6946ea769aa4a"
+checksum = "3dd588ae658a299e435a6e3bdc289b9ab3b39711c32653acebe62e729eb3c89f"
 dependencies = [
  "derive-new",
  "lazy_static",
@@ -353,7 +353,7 @@ version = "4.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2bac35c6dafb060fd4d275d9a4ffae97917c13a6327903a8be2153cd964f7085"
 dependencies = [
- "heck 0.5.0",
+ "heck",
  "proc-macro2",
  "quote",
  "syn 2.0.70",
@@ -620,12 +620,6 @@ version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
-[[package]]
-name = "heck"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
-
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -1615,11 +1609,11 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "strum_macros"
-version = "0.25.3"
+version = "0.26.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23dc1fa9ac9c169a78ba62f0b841814b7abae11bdd047b9c58f893439e309ea0"
+checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
 dependencies = [
- "heck 0.4.1",
+ "heck",
  "proc-macro2",
  "quote",
  "rustversion",
diff --git a/Cargo.toml b/Cargo.toml
index 694b7ae..0b187d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -63,9 +63,9 @@ csv = "1.3.0"
 mimalloc = { version = "0.1.43", default-features = false }
 num-format = "0.4.4"
 num_cpus = "1.16.0"
-bio-types = { version = "1.0.1", default-features = true, features = ["serde"] }
+bio-types = { version = "1.0.2", default-features = true, features = ["serde"] }
 itertools = "0.13.0"
-thiserror = "1.0.61"
+thiserror = "1.0.62"
 statrs = "0.17.1"
 sce = { git = "https://github.com/parazodiac/SingleCellExperiment", branch = "dev", version = "0.2.0" }
 
diff --git a/src/quant.rs b/src/quant.rs
index 126f431..f423a90 100644
--- a/src/quant.rs
+++ b/src/quant.rs
@@ -319,7 +319,7 @@ pub fn quantify(quant_opts: QuantOpts) -> anyhow::Result<()> {
     if compressed_input {
         let i_file =
             File::open(parent.join("map.collated.rad.sz")).context("run collate before quant")?;
-        let br = BufReader::new(snap::read::FrameDecoder::new(BufReader::new(&i_file)));
+        let br = BufReader::new(snap::read::FrameDecoder::new(&i_file));
 
         info!(
             log,
@@ -544,11 +544,6 @@ pub fn do_quantify<T: BufRead>(mut br: T, quant_opts: QuantOpts) -> anyhow::Resu
     // the number of reference sequences
     let ref_count = hdr.ref_count as u32;
 
-    // TODO -- maybe delete March 5, 2024
-    // the types for the barcodes and umis
-    // let bc_type = rad_types::decode_int_type_tag(bct).expect("unsupported barcode type id.");
-    // let umi_type = rad_types::decode_int_type_tag(umit).expect("unsupported umi type id.");
-
     // the number of genes (different than the number of reference sequences, which are transcripts)
     let num_genes = gene_name_to_id.len();