diff --git a/zerocopy-derive/Cargo.toml b/zerocopy-derive/Cargo.toml index 6aba90a4a58..26c0db8b74e 100644 --- a/zerocopy-derive/Cargo.toml +++ b/zerocopy-derive/Cargo.toml @@ -29,7 +29,7 @@ proc-macro = true [dependencies] proc-macro2 = "1.0.1" quote = "1.0.10" -syn = "2.0.31" +syn = "=2.0.55" [dev-dependencies] # We don't use this directly, but trybuild does. On the MSRV toolchain, the