diff --git a/Cargo.toml b/Cargo.toml
index 676ac26..a0fb442 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ homepage = "https://github.com/ebfull/bellman"
 license = "MIT/Apache-2.0"
 name = "bellman"
 repository = "https://github.com/ebfull/bellman"
-version = "0.0.8"
+version = "0.0.9"
 
 [dependencies]
 rand = "0.3"
@@ -15,7 +15,7 @@ futures = "0.1"
 futures-cpupool = "0.1"
 num_cpus = "1"
 crossbeam = "0.3"
-pairing = "0.13"
+pairing = "0.14"
 byteorder = "1"
 
 [features]
diff --git a/src/groth16/tests/dummy_engine.rs b/src/groth16/tests/dummy_engine.rs
index 016aa90..26c8996 100644
--- a/src/groth16/tests/dummy_engine.rs
+++ b/src/groth16/tests/dummy_engine.rs
@@ -196,15 +196,11 @@ impl Default for FrRepr {
 }
 
 impl PrimeFieldRepr for FrRepr {
-    fn sub_noborrow(&mut self, other: &Self) -> bool {
+    fn sub_noborrow(&mut self, other: &Self) {
         self.0[0] = self.0[0].wrapping_sub(other.0[0]);
-
-        false
     }
-    fn add_nocarry(&mut self, other: &Self) -> bool {
+    fn add_nocarry(&mut self, other: &Self) {
         self.0[0] = self.0[0].wrapping_add(other.0[0]);
-
-        false
     }
     fn num_bits(&self) -> u32 {
         64 - self.0[0].leading_zeros()
@@ -219,15 +215,15 @@ impl PrimeFieldRepr for FrRepr {
         self.0[0] % 2 == 0
     }
     fn div2(&mut self) {
-        self.divn(1)
+        self.shr(1)
     }
-    fn divn(&mut self, amt: u32) {
+    fn shr(&mut self, amt: u32) {
         self.0[0] >>= amt;
     }
     fn mul2(&mut self) {
-        self.muln(1)
+        self.shl(1)
     }
-    fn muln(&mut self, amt: u32) {
+    fn shl(&mut self, amt: u32) {
         self.0[0] <<= amt;
     }
 }
diff --git a/src/multiexp.rs b/src/multiexp.rs
index c23decc..b1dc1f1 100644
--- a/src/multiexp.rs
+++ b/src/multiexp.rs
@@ -183,7 +183,7 @@ fn multiexp_inner<Q, D, G, S>(
                         }
                     } else {
                         let mut exp = exp;
-                        exp.divn(skip);
+                        exp.shr(skip);
                         let exp = exp.as_ref()[0] % (1 << c);
 
                         if exp != 0 {