diff --git a/crypto-primitives/Cargo.toml b/crypto-primitives/Cargo.toml
index 4d3566d..3b937c8 100644
--- a/crypto-primitives/Cargo.toml
+++ b/crypto-primitives/Cargo.toml
@@ -32,7 +32,6 @@ bench-utils = { path = "../bench-utils" }
 digest = "0.7"
 blake2 = "0.7"
 
-num-traits = { version = "0.2.11" }
 rand = { version = "0.7" }
 derivative = "1"
 rayon = "1"
diff --git a/r1cs-std/Cargo.toml b/r1cs-std/Cargo.toml
index b72a8f0..a797398 100644
--- a/r1cs-std/Cargo.toml
+++ b/r1cs-std/Cargo.toml
@@ -25,7 +25,6 @@ edition = "2018"
 algebra = { path = "../algebra" }
 r1cs-core = { path = "../r1cs-core" }
 derivative = "1"
-num-traits = { version = "0.2.11" }
 radix_trie = "0.1"
 
 [dev-dependencies]