diff --git a/Cargo.toml b/Cargo.toml
index cd3e6b722..bf59afcc2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,24 +13,24 @@ readme = "README.md"
 keywords = ["search", "information", "retrieval"]
 
 [dependencies]
-byteorder = "0.4"
-memmap = "0.2"
-lazy_static = "0.1"
-regex = "0.1"
-fst = "0.1.34"
-atomicwrites = "0.0.14"
+byteorder = "1.0"
+memmap = "0.5"
+lazy_static = "0.2.1"
+regex = "0.2"
+fst = "0.1.35"
+atomicwrites = "0.1.3"
 tempfile = "2.1"
 rustc-serialize = "0.3"
-log = "0.3"
-combine = "2.0.*"
+log = "0.3.6"
+combine = "2.2"
 tempdir = "0.3"
-bincode = "0.4"
-libc = {version = "0.2.6", optional=true}
-num_cpus = "0.2"
-itertools = "0.4"
-lz4 = "1.13"
+bincode = "0.5"
+libc = {version = "0.2.20", optional=true}
+num_cpus = "1.2"
+itertools = "0.5.9"
+lz4 = "1.20"
 time = "0.1"
-uuid = "0.1"
+uuid = { version = "0.4", features = ["v4", "rustc-serialize"] }
 chan = "0.1"
 version = "2"
 crossbeam = "0.2"
diff --git a/src/common/serialize.rs b/src/common/serialize.rs
index 29c7b2986..b1ffab6cd 100644
--- a/src/common/serialize.rs
+++ b/src/common/serialize.rs
@@ -1,4 +1,3 @@
-
 use byteorder::{ReadBytesExt, WriteBytesExt};
 use byteorder::LittleEndian as Endianness;
 use std::fmt;
@@ -6,20 +5,12 @@ use std::io::Write;
 use std::io::Read;
 use std::io;
 use common::VInt;
-use byteorder;
 
 pub trait BinarySerializable : fmt::Debug + Sized {
     fn serialize(&self, writer: &mut Write) -> io::Result<usize>;
     fn deserialize(reader: &mut Read) -> io::Result<Self>;
 }
 
-fn convert_byte_order_error(byteorder_error: byteorder::Error) -> io::Error {
-    match byteorder_error {
-        byteorder::Error::UnexpectedEOF => io::Error::new(io::ErrorKind::InvalidData, "Reached EOF unexpectedly"),
-        byteorder::Error::Io(e) => e,
-    }
-}
-
 impl BinarySerializable for () {
     fn serialize(&self, _: &mut Write) -> io::Result<usize> {
         Ok(0)
@@ -62,12 +53,10 @@ impl BinarySerializable for u32 {
     fn serialize(&self, writer: &mut Write) -> io::Result<usize> {
         writer.write_u32::<Endianness>(*self)
               .map(|_| 4)
-              .map_err(convert_byte_order_error)
     }
 
     fn deserialize(reader: &mut Read) -> io::Result<u32> {
         reader.read_u32::<Endianness>()
-              .map_err(convert_byte_order_error)
     }
 }
 
@@ -76,11 +65,9 @@ impl BinarySerializable for u64 {
     fn serialize(&self, writer: &mut Write) -> io::Result<usize> {
         writer.write_u64::<Endianness>(*self)
               .map(|_| 8)
-              .map_err(convert_byte_order_error)
     }
     fn deserialize(reader: &mut Read) -> io::Result<u64> {
         reader.read_u64::<Endianness>()
-              .map_err(convert_byte_order_error)
     }
 }
 
@@ -88,12 +75,11 @@ impl BinarySerializable for u64 {
 impl BinarySerializable for u8 {
     fn serialize(&self, writer: &mut Write) -> io::Result<usize> {
         // TODO error
-        try!(writer.write_u8(*self).map_err(convert_byte_order_error));
+        try!(writer.write_u8(*self));
         Ok(1)
     }
     fn deserialize(reader: &mut Read) -> io::Result<u8> {
         reader.read_u8()
-              .map_err(convert_byte_order_error)
     }
 }
 
@@ -123,7 +109,7 @@ mod test {
 
     fn serialize_test<T: BinarySerializable + Eq>(v: T, num_bytes: usize) {
         let mut buffer: Vec<u8> = Vec::new();
-        
+
         if num_bytes != 0 {
             assert_eq!(v.serialize(&mut buffer).unwrap(), num_bytes);
             assert_eq!(buffer.len(), num_bytes);
diff --git a/src/core/segment_id.rs b/src/core/segment_id.rs
index 81490166a..3d77668b3 100644
--- a/src/core/segment_id.rs
+++ b/src/core/segment_id.rs
@@ -23,12 +23,12 @@ lazy_static! {
 // During tests, we generate the segment id in a autoincrement manner
 // for consistency of segment id between run.
 //
-// The order of the test execution is not guaranteed, but the order 
+// The order of the test execution is not guaranteed, but the order
 // of segments within a single test is guaranteed.
 #[cfg(test)]
 fn create_uuid() -> Uuid {
     let new_auto_inc_id = (*AUTO_INC_COUNTER).fetch_add(1, atomic::Ordering::SeqCst);
-    Uuid::from_fields(new_auto_inc_id as u32, 0, 0, &*EMPTY_ARR)
+    Uuid::from_fields(new_auto_inc_id as u32, 0, 0, &*EMPTY_ARR).unwrap()
 }
 
 #[cfg(not(test))]
@@ -40,15 +40,15 @@ impl SegmentId {
     pub fn generate_random() -> SegmentId {
         SegmentId(create_uuid())
     }
-    
+
     pub fn short_uuid_string(&self,) -> String {
-        (&self.0.to_simple_string()[..8]).to_string()
+        (&self.0.simple().to_string()[..8]).to_string()
     }
-    
+
     pub fn uuid_string(&self,) -> String {
-        self.0.to_simple_string()
+        self.0.simple().to_string()
     }
-    
+
     pub fn relative_path(&self, component: SegmentComponent) -> PathBuf {
         let filename = self.uuid_string() + component.path_suffix();
         PathBuf::from(filename)