diff --git a/Cargo.toml b/Cargo.toml
index e0b8e5a30..4c800b92d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,12 +23,12 @@ travis-ci = { repository = "rust-num/num" }
 [dependencies]
 
 [dependencies.num-bigint]
-optional = true # needs std until Rust 1.36
-version = "0.4.4"
+optional = true
+version = "0.4.5"
 default-features = false
 
 [dependencies.num-complex]
-version = "0.4.5"
+version = "0.4.6"
 default-features = false
 
 [dependencies.num-integer]
@@ -37,16 +37,16 @@ default-features = false
 features = ["i128"]
 
 [dependencies.num-iter]
-version = "0.1.44"
+version = "0.1.45"
 default-features = false
 features = ["i128"]
 
 [dependencies.num-rational]
-version = "0.4.1"
+version = "0.4.2"
 default-features = false
 
 [dependencies.num-traits]
-version = "0.2.18"
+version = "0.2.19"
 default-features = false
 features = ["i128"]