diff --git a/Cargo.toml b/Cargo.toml
index 61f58adf..e57e3f48 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ serde-serialize = [ "serde", "serde_derive", "num-complex/serde" ]
 
 [dependencies]
 typenum         = "1.4"
-generic-array   = "0.2"
+generic-array   = "0.8"
 rand            = "0.3"
 num-traits      = "0.1"
 num-complex     = "0.1"
@@ -33,7 +33,7 @@ serde_derive    = { version = "1.0", optional = true }
 
 [dependencies.quickcheck]
 optional = true
-version  = "0.3"
+version  = "0.4"
 
 [dev-dependencies]
 serde_json = "1.0"