diff --git a/serde_tests/Cargo.toml b/serde_tests/Cargo.toml
index 31ad0e3d..4e0dba9a 100644
--- a/serde_tests/Cargo.toml
+++ b/serde_tests/Cargo.toml
@@ -11,15 +11,15 @@ keywords = ["serialization"]
 build = "build.rs"
 
 [build-dependencies]
-syntex = { version = "^0.25.0" }
-syntex_syntax = { version = "^0.25.0" }
+syntex = { version = "^0.26.0" }
+syntex_syntax = { version = "^0.26.0" }
 serde_codegen = { version = "*", path = "../serde_codegen", features = ["with-syntex"] }
 
 [dev-dependencies]
 num = "^0.1.27"
 rustc-serialize = "^0.3.16"
 serde = { version = "*", path = "../serde", features = ["num-impls"] }
-syntex = "^0.25.0"
+syntex = "^0.26.0"
 
 [[test]]
 name = "test"