diff --git a/test_suite/Cargo.toml b/test_suite/Cargo.toml
index 3e2aaefb..9a3c3315 100644
--- a/test_suite/Cargo.toml
+++ b/test_suite/Cargo.toml
@@ -24,4 +24,4 @@ rustversion = "1.0"
 serde = { path = "../serde", features = ["rc", "derive"] }
 serde_derive = { path = "../serde_derive", features = ["deserialize_in_place"] }
 serde_test = { path = "../serde_test" }
-trybuild = { version = "1.0.49", features = ["diff"] }
+trybuild = { version = "1.0.66", features = ["diff"] }
diff --git a/test_suite/tests/ui/remote/wrong_ser.stderr b/test_suite/tests/ui/remote/wrong_ser.stderr
index d7584cdf..bc0fed05 100644
--- a/test_suite/tests/ui/remote/wrong_ser.stderr
+++ b/test_suite/tests/ui/remote/wrong_ser.stderr
@@ -1,17 +1,17 @@
 error[E0308]: mismatched types
-  --> tests/ui/remote/wrong_ser.rs:9:10
-   |
-9  | #[derive(Serialize)]
-   |          ^^^^^^^^^
-   |          |
-   |          expected `u8`, found `u16`
-   |          arguments to this function are incorrect
-   |
-   = note: expected reference `&u8`
-              found reference `&u16`
+ --> tests/ui/remote/wrong_ser.rs:9:10
+  |
+9 | #[derive(Serialize)]
+  |          ^^^^^^^^^
+  |          |
+  |          expected `u8`, found `u16`
+  |          arguments to this function are incorrect
+  |
+  = note: expected reference `&u8`
+             found reference `&u16`
 note: function defined here
-  --> $WORKSPACE/serde/src/private/ser.rs
-   |
-   | pub fn constrain<T: ?Sized>(t: &T) -> &T {
-   |        ^^^^^^^^^
-   = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
+ --> $WORKSPACE/serde/src/private/ser.rs
+  |
+  | pub fn constrain<T: ?Sized>(t: &T) -> &T {
+  |        ^^^^^^^^^
+  = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)