diff --git a/.travis.yml b/.travis.yml
index b634ecd..68eeb24 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,9 @@ language: rust
 rust:
 - nightly
 - beta
-- 1.26.0
+- 1.40.0
 addons:
   postgresql: 9.4
 script:
 - cargo test
-- cargo test --features "with-time with-chrono"
+- cargo test --features "with-chrono-0_4"
diff --git a/Cargo.toml b/Cargo.toml
index 2166895..9bda1bc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,20 +2,19 @@
 name = "postgres_range"
 version = "0.9.1"
 authors = ["Steven Fackler <sfackler@gmail.com>"]
+edition = "2018"
 license = "MIT"
 description = "Range support for rust-postgres"
 repository = "https://github.com/sfackler/rust-postgres-range"
 documentation = "https://sfackler.github.io/rust-postgres-range/doc/v0.9.0/postgres_range"
 
 [features]
-with-time = ["time", "postgres-shared/with-time"]
-with-chrono = ["chrono", "postgres-shared/with-chrono"]
+with-chrono-0_4 = ["chrono-04", "postgres-types/with-chrono-0_4"]
 
 [dependencies]
-time = { version = "0.1", optional = true }
-postgres-protocol = "0.3"
-chrono = { version = "0.4.0", optional = true }
-postgres-shared = "0.4.0"
+postgres-protocol = "0.5"
+postgres-types = "0.1"
+chrono-04 = { version = "0.4", package = "chrono", optional = true }
 
 [dev-dependencies]
-postgres = { version = "0.15", features = ["with-time"] }
+postgres = { version = "0.17" }
diff --git a/src/chrono_04.rs b/src/chrono_04.rs
new file mode 100644
index 0000000..be9a741
--- /dev/null
+++ b/src/chrono_04.rs
@@ -0,0 +1,23 @@
+use chrono_04::{DateTime, NaiveDateTime, TimeZone};
+
+use crate::{Normalizable, RangeBound, BoundSided};
+
+impl<T> Normalizable for DateTime<T>
+    where T: TimeZone {
+    fn normalize<S>(bound: RangeBound<S, DateTime<T>>) -> RangeBound<S, DateTime<T>>
+    where
+        S: BoundSided,
+    {
+        bound
+    }
+}
+
+impl Normalizable for NaiveDateTime
+{
+    fn normalize<S>(bound: RangeBound<S, NaiveDateTime>) -> RangeBound<S, NaiveDateTime>
+    where
+        S: BoundSided,
+    {
+        bound
+    }
+}
\ No newline at end of file
diff --git a/src/impls.rs b/src/impls.rs
index 567500f..19615e1 100644
--- a/src/impls.rs
+++ b/src/impls.rs
@@ -1,16 +1,17 @@
 use std::error::Error;
-use postgres_shared::types::{FromSql, IsNull, Kind, ToSql, Type};
+use postgres_types::{FromSql, IsNull, Kind, ToSql, Type};
+use postgres_types::private::BytesMut;
 use postgres_protocol::{self as protocol, types};
 
-use {BoundSided, BoundType, Normalizable, Range, RangeBound};
+use crate::{BoundSided, BoundType, Normalizable, Range, RangeBound};
 
-impl<T> FromSql for Range<T>
+impl<'a, T> FromSql<'a> for Range<T>
 where
-    T: PartialOrd + Normalizable + FromSql,
+    T: PartialOrd + Normalizable + FromSql<'a>,
 {
-    fn from_sql(ty: &Type, raw: &[u8]) -> Result<Range<T>, Box<Error + Sync + Send>> {
-        let element_type = match ty.kind() {
-            &Kind::Range(ref ty) => ty,
+    fn from_sql(ty: &Type, raw: &'a [u8]) -> Result<Range<T>, Box<dyn Error + Sync + Send>> {
+        let element_type = match *ty.kind() {
+            Kind::Range(ref ty) => ty,
             _ => panic!("unexpected type {:?}", ty),
         };
 
@@ -25,16 +26,16 @@ where
     }
 
     fn accepts(ty: &Type) -> bool {
-        match ty.kind() {
-            &Kind::Range(ref inner) => <T as FromSql>::accepts(inner),
+        match *ty.kind() {
+            Kind::Range(ref inner) => <T as FromSql>::accepts(inner),
             _ => false,
         }
     }
 }
 
-fn bound_from_sql<T, S>(bound: types::RangeBound<Option<&[u8]>>, ty: &Type) -> Result<Option<RangeBound<S, T>>, Box<Error + Sync + Send>>
+fn bound_from_sql<'a, T, S>(bound: types::RangeBound<Option<&'a [u8]>>, ty: &Type) -> Result<Option<RangeBound<S, T>>, Box<dyn Error + Sync + Send>>
 where
-    T: PartialOrd + Normalizable + FromSql,
+    T: PartialOrd + Normalizable + FromSql<'a>,
     S: BoundSided,
 {
     match bound {
@@ -60,9 +61,9 @@ impl<T> ToSql for Range<T>
 where
     T: PartialOrd + Normalizable + ToSql,
 {
-    fn to_sql(&self, ty: &Type, buf: &mut Vec<u8>) -> Result<IsNull, Box<Error + Sync + Send>> {
-        let element_type = match ty.kind() {
-            &Kind::Range(ref ty) => ty,
+    fn to_sql(&self, ty: &Type, buf: &mut BytesMut) -> Result<IsNull, Box<dyn Error + Sync + Send>> {
+        let element_type = match *ty.kind() {
+            Kind::Range(ref ty) => ty,
             _ => panic!("unexpected type {:?}", ty),
         };
 
@@ -80,8 +81,8 @@ where
     }
 
     fn accepts(ty: &Type) -> bool {
-        match ty.kind() {
-            &Kind::Range(ref inner) => <T as ToSql>::accepts(inner),
+        match *ty.kind() {
+            Kind::Range(ref inner) => <T as ToSql>::accepts(inner),
             _ => false,
         }
     }
@@ -89,7 +90,7 @@ where
     to_sql_checked!();
 }
 
-fn bound_to_sql<S, T>(bound: Option<&RangeBound<S, T>>, ty: &Type, buf: &mut Vec<u8>) -> Result<types::RangeBound<protocol::IsNull>, Box<Error + Sync + Send>>
+fn bound_to_sql<S, T>(bound: Option<&RangeBound<S, T>>, ty: &Type, buf: &mut BytesMut) -> Result<types::RangeBound<protocol::IsNull>, Box<dyn Error + Sync + Send>>
 where
     S: BoundSided,
     T: ToSql,
@@ -114,10 +115,10 @@ where
 mod test {
     use std::fmt;
 
-    use postgres::{Connection, TlsMode};
+    use postgres::{Client, NoTls};
     use postgres::types::{FromSql, ToSql};
-    #[cfg(feature = "with-time")]
-    use time::{self, Timespec};
+    #[cfg(feature = "with-chrono-0_4")]
+    use chrono_04::{TimeZone, Utc, Duration};
 
     macro_rules! test_range {
         ($name:expr, $t:ty, $low:expr, $low_str:expr, $high:expr, $high_str:expr) => ({
@@ -140,16 +141,21 @@ mod test {
         })
     }
 
-    fn test_type<T: PartialEq + FromSql + ToSql, S: fmt::Display>(sql_type: &str, checks: &[(T, S)]) {
-        let conn = Connection::connect("postgres://postgres@localhost", TlsMode::None).unwrap();
+
+    fn test_type<T, S>(sql_type: &str, checks: &[(T, S)])
+    where for<'a>
+        T: Sync + PartialEq + FromSql<'a> + ToSql,
+        S: fmt::Display
+    {
+        let mut conn = Client::connect("postgres://postgres@localhost", NoTls).unwrap();
         for &(ref val, ref repr) in checks {
             let stmt = conn.prepare(&*format!("SELECT {}::{}", *repr, sql_type))
                 .unwrap();
-            let result = stmt.query(&[]).unwrap().iter().next().unwrap().get(0);
+            let result = conn.query(&stmt, &[]).unwrap().iter().next().unwrap().get(0);
             assert!(val == &result);
 
             let stmt = conn.prepare(&*format!("SELECT $1::{}", sql_type)).unwrap();
-            let result = stmt.query(&[val]).unwrap().iter().next().unwrap().get(0);
+            let result = conn.query(&stmt, &[val]).unwrap().iter().next().unwrap().get(0);
             assert!(val == &result);
         }
     }
@@ -164,25 +170,19 @@ mod test {
         test_range!("INT8RANGE", i64, 100i64, "100", 200i64, "200")
     }
 
-    #[cfg(feature = "with-time")]
-    fn test_timespec_range_params(sql_type: &str) {
-        fn t(time: &str) -> Timespec {
-            time::strptime(time, "%Y-%m-%d").unwrap().to_timespec()
-        }
-        let low = "1970-01-01";
-        let high = "1980-01-01";
-        test_range!(sql_type, Timespec, t(low), low, t(high), high);
-    }
-
     #[test]
-    #[cfg(feature = "with-time")]
+    #[cfg(feature = "with-chrono-0_4")]
     fn test_tsrange_params() {
-        test_timespec_range_params("TSRANGE");
+        let low = Utc.timestamp(0, 0);
+        let high = low + Duration::days(10);
+        test_range!("TSRANGE", NaiveDateTime, low.naive_utc(), "1970-01-01", high.naive_utc(), "1970-01-11");
     }
 
     #[test]
-    #[cfg(feature = "with-time")]
+    #[cfg(feature = "with-chrono-0_4")]
     fn test_tstzrange_params() {
-        test_timespec_range_params("TSTZRANGE");
+        let low = Utc.timestamp(0, 0);
+        let high = low + Duration::days(10);
+        test_range!("TSTZRANGE", DateTime<Utc>, low, "1970-01-01", high, "1970-01-11");
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 300f543..f4d0c53 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,27 +1,18 @@
 //! Types dealing with ranges of values
 #![doc(html_root_url = "https://sfackler.github.io/rust-postgres-range/doc/v0.9")]
+#![warn(clippy::all, rust_2018_idioms, missing_docs)]
 
-extern crate postgres_protocol;
 #[macro_use(to_sql_checked)]
-extern crate postgres_shared;
+extern crate postgres_types;
 
-#[cfg(feature = "with-time")]
-extern crate time;
-#[cfg(feature = "with-chrono")]
-extern crate chrono;
+#[cfg(feature = "with-chrono-0_4")]
+mod chrono_04;
 
-#[cfg(test)]
-extern crate postgres;
-
-#[cfg(feature = "with-chrono")]
-use chrono::{DateTime, NaiveDateTime, TimeZone};
 use std::cmp::Ordering;
 use std::fmt;
 use std::i32;
 use std::i64;
 use std::marker::PhantomData;
-#[cfg(feature = "with-time")]
-use time::Timespec;
 
 use BoundSide::{Lower, Upper};
 use BoundType::{Exclusive, Inclusive};
@@ -155,38 +146,6 @@ macro_rules! bounded_normalizable {
 bounded_normalizable!(i32);
 bounded_normalizable!(i64);
 
-#[cfg(feature = "with-time")]
-impl Normalizable for Timespec {
-    fn normalize<S>(bound: RangeBound<S, Timespec>) -> RangeBound<S, Timespec>
-    where
-        S: BoundSided,
-    {
-        bound
-    }
-}
-
-#[cfg(feature = "with-chrono")]
-impl<T> Normalizable for DateTime<T>
-    where T: TimeZone {
-    fn normalize<S>(bound: RangeBound<S, DateTime<T>>) -> RangeBound<S, DateTime<T>>
-    where
-        S: BoundSided,
-    {
-        bound
-    }
-}
-
-#[cfg(feature = "with-chrono")]
-impl Normalizable for NaiveDateTime
-{
-    fn normalize<S>(bound: RangeBound<S, NaiveDateTime>) -> RangeBound<S, NaiveDateTime>
-    where
-        S: BoundSided,
-    {
-        bound
-    }
-}
-
 /// The possible sides of a bound.
 #[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub enum BoundSide {
@@ -260,7 +219,7 @@ where
     fn clone(&self) -> RangeBound<S, T> {
         RangeBound {
             value: self.value.clone(),
-            type_: self.type_.clone(),
+            type_: self.type_,
             _m: PhantomData,
         }
     }
@@ -271,7 +230,7 @@ where
     S: BoundSided,
     T: fmt::Debug,
 {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         fmt.debug_struct("RangeBound")
             .field("value", &self.value)
             .field("type_", &self.type_)
@@ -284,7 +243,7 @@ where
     S: BoundSided,
     T: fmt::Display,
 {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         let (lower, upper) = match self.type_ {
             Inclusive => ('[', ']'),
             Exclusive => ('(', ')'),
@@ -306,9 +265,9 @@ where
         self.value == other.value && self.type_ == other.type_
     }
 
-    fn ne(&self, other: &RangeBound<S, T>) -> bool {
+    /*fn ne(&self, other: &RangeBound<S, T>) -> bool {
         self.value != other.value || self.type_ != other.type_
-    }
+    }*/
 }
 
 impl<S, T> Eq for RangeBound<S, T>
@@ -364,8 +323,8 @@ where
     /// Constructs a new range bound
     pub fn new(value: T, type_: BoundType) -> RangeBound<S, T> {
         RangeBound {
-            value: value,
-            type_: type_,
+            value,
+            type_,
             _m: PhantomData,
         }
     }
@@ -381,7 +340,7 @@ where
     }
 }
 
-struct OptBound<'a, S: 'a + BoundSided, T: 'a>(Option<&'a RangeBound<S, T>>);
+struct OptBound<'a, S: BoundSided, T>(Option<&'a RangeBound<S, T>>);
 
 impl<'a, S, T> PartialEq for OptBound<'a, S, T>
 where
@@ -393,10 +352,10 @@ where
         self_ == other
     }
 
-    fn ne(&self, &OptBound(ref other): &OptBound<'a, S, T>) -> bool {
+    /*fn ne(&self, &OptBound(ref other): &OptBound<'a, S, T>) -> bool {
         let &OptBound(ref self_) = self;
         self_ != other
-    }
+    }*/
 }
 
 impl<'a, S, T> PartialOrd for OptBound<'a, S, T>
@@ -433,7 +392,7 @@ impl<T> fmt::Display for Range<T>
 where
     T: fmt::Display,
 {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self.inner {
             Empty => write!(fmt, "empty"),
             Normal(ref lower, ref upper) => {
@@ -558,7 +517,7 @@ where
         let (_, OptBound(lower)) = order(OptBound(self.lower()), OptBound(other.lower()));
         let (OptBound(upper), _) = order(OptBound(self.upper()), OptBound(other.upper()));
 
-        Range::new(lower.map(|v| v.clone()), upper.map(|v| v.clone()))
+        Range::new(lower.cloned(), upper.cloned())
     }
 
     /// Returns the union of this range with another if it is contiguous.
@@ -595,8 +554,8 @@ where
             None
         } else {
             Some(Range::new(
-                l_lower.map(|v| v.clone()),
-                u_upper.map(|v| v.clone()),
+                l_lower.cloned(),
+                u_upper.cloned(),
             ))
         }
     }
@@ -758,7 +717,7 @@ mod test {
         assert_eq!(r1, (range!('(',; ')')).intersect(&r1));
 
         let r2 = range!('(' 10i32,; ')');
-        let exp = Range::new(r2.lower().map(|v| v.clone()), r1.upper().map(|v| v.clone()));
+        let exp = Range::new(r2.lower().copied(), r1.upper().copied());
         assert_eq!(exp, r1.intersect(&r2));
         assert_eq!(exp, r2.intersect(&r1));