diff --git a/Cargo.toml b/Cargo.toml
index b53b455a16d..051c60fca11 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ version = "1.6.0"
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang/rustfmt"
 readme = "README.md"
-license = "Apache-2.0/MIT"
+license = "Apache-2.0 OR MIT"
 build = "build.rs"
 categories = ["development-tools"]
 edition = "2021"
diff --git a/config_proc_macro/Cargo.toml b/config_proc_macro/Cargo.toml
index 34e8c237f55..eda8a7fce81 100644
--- a/config_proc_macro/Cargo.toml
+++ b/config_proc_macro/Cargo.toml
@@ -3,7 +3,7 @@ name = "rustfmt-config_proc_macro"
 version = "0.3.0"
 edition = "2018"
 description = "A collection of procedural macros for rustfmt"
-license = "Apache-2.0/MIT"
+license = "Apache-2.0 OR MIT"
 categories = ["development-tools::procedural-macro-helpers"]
 repository = "https://github.com/rust-lang/rustfmt"