diff --git a/Cargo.toml b/Cargo.toml
index e9bab25..0026d5d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bio-streams"
-version = "0.3.1"
+version = "0.4.0"
 edition = "2021"
 authors = ["jeff-k <jeff_k@fastmail.com>"]
 description = "Streaming bioinformatics data types"
@@ -12,12 +12,14 @@ readme = "README.md"
 [dependencies]
 futures = "0.3"
 futures-test = "0.3"
-bio-seq = "0.12"
+bio-seq = "0.13"
+#bio-seq = { path = "../bio-seq/bio-seq" }
 
 [dev-dependencies]
 flate2 = "1"
 clap = { version="4", features=["derive"] }
-bio-seq = "0.12"
+bio-seq = "0.13"
+#bio-seq = { path = "../bio-seq/bio-seq" }
 
 [[example]]
 name = "fqcheck"
diff --git a/examples/aminokmers.rs b/examples/aminokmers.rs
index 746625a..a09480c 100644
--- a/examples/aminokmers.rs
+++ b/examples/aminokmers.rs
@@ -1,6 +1,3 @@
-extern crate bio_seq;
-extern crate bio_streams;
-
 use std::fs::File;
 use std::io::BufReader;
 use std::path::PathBuf;
@@ -30,7 +27,7 @@ fn main() {
 
     for contig in faa {
         for kmer in contig.unwrap().seq.kmers::<K>() {
-            histo[usize::from(kmer)] += 1;
+            histo[usize::from(&kmer)] += 1;
             total += 1;
         }
         count += 1;
diff --git a/examples/fqcheck.rs b/examples/fqcheck.rs
index 0bea352..2b98111 100644
--- a/examples/fqcheck.rs
+++ b/examples/fqcheck.rs
@@ -1,6 +1,3 @@
-extern crate bio_streams;
-extern crate flate2;
-
 use std::fs::File;
 use std::io::BufReader;
 use std::path::PathBuf;
diff --git a/src/lib.rs b/src/lib.rs
index 973f5e0..41ea3f9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -75,8 +75,6 @@
 //! }
 //! ```
 //!
-extern crate bio_seq;
-
 pub mod fasta;
 pub mod fastq;
 pub mod record;