diff --git a/Cargo.toml b/Cargo.toml
index 42d2ad3..f69e7ec 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,24 +21,24 @@ edition = "2018"
 [dependencies]
 byteorder = "1.2.7"
 errno = "0.2.4"
-failure = "0.1.3"
-hex_fmt = "0.2.0"
+failure = "0.1.5"
+hex_fmt = "0.3.0"
 lazy_static = "1.1.0"
-log = "0.4.5"
+log = "0.4.6"
 memsec = "0.5.4"
 pairing = { version = "0.14.2", features = ["u128-support"] }
-rand = "0.6.1"
-rand04_compat = "0.1.0"
-rand_chacha = "0.1.0"
-serde = "1.0.80"
-serde_derive = "1.0.80"
+rand = "0.6.4"
+rand04_compat = "0.1.1"
+rand_chacha = "0.1.1"
+serde = "1.0.84"
+serde_derive = "1.0.84"
 tiny-keccak = "1.4.2"
 
 [dev-dependencies]
 bincode = "1.0.1"
-criterion = "0.2.5"
-serde_derive = "1.0.80"
-rand_xorshift = "0.1.0"
+criterion = "0.2.7"
+serde_derive = "1.0.84"
+rand_xorshift = "0.1.1"
 
 [[bench]]
 name = "bench"
diff --git a/src/lib.rs b/src/lib.rs
index 4955007..2f806a0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,7 +11,7 @@
 )]
 #![warn(missing_docs)]
 
-pub extern crate pairing;
+pub use pairing;
 
 mod into_fr;
 mod secret;
@@ -72,7 +72,7 @@ impl Hash for PublicKey {
 }
 
 impl fmt::Debug for PublicKey {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let uncomp = self.0.into_affine().into_uncompressed();
         write!(f, "PublicKey({:0.10})", HexFmt(uncomp))
     }
@@ -133,7 +133,7 @@ impl PublicKey {
 pub struct PublicKeyShare(PublicKey);
 
 impl fmt::Debug for PublicKeyShare {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let uncomp = (self.0).0.into_affine().into_uncompressed();
         write!(f, "PublicKeyShare({:0.10})", HexFmt(uncomp))
     }
@@ -182,7 +182,7 @@ impl Distribution<Signature> for Standard {
 }
 
 impl fmt::Debug for Signature {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let uncomp = self.0.into_affine().into_uncompressed();
         write!(f, "Signature({:0.10})", HexFmt(uncomp))
     }
@@ -233,7 +233,7 @@ impl Distribution<SignatureShare> for Standard {
 }
 
 impl fmt::Debug for SignatureShare {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let uncomp = (self.0).0.into_affine().into_uncompressed();
         write!(f, "SignatureShare({:0.10})", HexFmt(uncomp))
     }
@@ -287,7 +287,7 @@ impl Drop for SecretKey {
 }
 /// A debug statement where the secret prime field element is redacted.
 impl fmt::Debug for SecretKey {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_tuple("SecretKey").field(&"...").finish()
     }
 }
@@ -374,7 +374,7 @@ impl Distribution<SecretKeyShare> for Standard {
 }
 
 impl fmt::Debug for SecretKeyShare {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_tuple("SecretKeyShare").field(&"...").finish()
     }
 }
diff --git a/src/poly.rs b/src/poly.rs
index 2379dbc..6ced6c3 100644
--- a/src/poly.rs
+++ b/src/poly.rs
@@ -49,7 +49,7 @@ impl Clone for Poly {
 
 /// A debug statement where the `coeff` vector of prime field elements has been redacted.
 impl Debug for Poly {
-    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         f.debug_struct("Poly").field("coeff", &"...").finish()
     }
 }
@@ -530,7 +530,7 @@ impl Drop for BivarPoly {
 
 /// A debug statement where the `coeff` vector has been redacted.
 impl Debug for BivarPoly {
-    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         f.debug_struct("BivarPoly")
             .field("degree", &self.degree)
             .field("coeff", &"...")
diff --git a/src/serde_impl.rs b/src/serde_impl.rs
index 4feaeaa..34fcc55 100644
--- a/src/serde_impl.rs
+++ b/src/serde_impl.rs
@@ -82,7 +82,7 @@ pub(crate) mod projective {
         impl<'de, C: CurveProjective> Visitor<'de> for TupleVisitor<C> {
             type Value = C;
 
-            fn expecting(&self, f: &mut fmt::Formatter) -> fmt::Result {
+            fn expecting(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                 let len = <C::Affine as CurveAffine>::Compressed::size();
                 write!(f, "a tuple of size {}", len)
             }