diff --git a/vm/Cargo.toml b/vm/Cargo.toml
index c83de6eb766..a8b43923386 100644
--- a/vm/Cargo.toml
+++ b/vm/Cargo.toml
@@ -26,8 +26,8 @@ blake2 = "0.8"
 
 num-complex = { version = "0.2", features = ["serde"] }
 num-bigint = { version = "0.2", features = ["serde"] }
-num-traits = "=0.2.6"
-num-integer = "=0.1.39"
+num-traits = "0.2.6"
+num-integer = "0.1.39"
 num-rational = "0.2.1"
 num-iter = "0.1"
 rand = "0.5"
@@ -43,7 +43,7 @@ regex = "1"
 rustc_version_runtime = "0.1.*"
 statrs = "0.10.0"
 caseless = "0.2.1"
-chrono = "=0.4.6"
+chrono = "0.4.6"
 unicode-segmentation = "1.2.1"
 unicode-xid = "0.1.0"
 lazy_static = "^1.0.1"