diff --git a/Cargo.toml b/Cargo.toml
index da9532c098..495e2141cf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,11 +14,11 @@ name = "generic_array"
 [dependencies]
 typenum = "1.3.1"
 nodrop = "0.1.6"
-serde = { version = "~0.7", optional = true }
+serde = { version = "~0.8", optional = true }
 
 [dev_dependencies]
 # this can't yet be made optional, see https://github.com/rust-lang/cargo/issues/1596
-serde_json = "~0.7"
+serde_json = "~0.8"
 
 [features]
 no_std = []