diff --git a/Cargo.lock b/Cargo.lock
index e51017c6ab..8736bf6796 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1448,6 +1448,16 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "ra-ap-rustc_lexer"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc741c7a78103efab416b562e35bd73c8d4967478575010c86c6062f8d3cbf29"
+dependencies = [
+ "unicode-properties",
+ "unicode-xid",
+]
+
 [[package]]
 name = "ra-ap-rustc_parse_format"
 version = "0.20.0"
@@ -1455,7 +1465,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0a6b325ee1ec90e4dbd4394913adf4ef32e4fcf2b311ec9563a0fa50cd549af6"
 dependencies = [
  "ra-ap-rustc_index",
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.20.0",
 ]
 
 [[package]]
@@ -1607,7 +1617,7 @@ version = "0.0.0"
 dependencies = [
  "ra-ap-rustc_abi",
  "ra-ap-rustc_index",
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.21.0",
  "ra-ap-rustc_parse_format",
 ]
 
diff --git a/crates/rustc-dependencies/Cargo.toml b/crates/rustc-dependencies/Cargo.toml
index cd7ec30593..af86170efd 100644
--- a/crates/rustc-dependencies/Cargo.toml
+++ b/crates/rustc-dependencies/Cargo.toml
@@ -11,7 +11,7 @@ authors.workspace = true
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-ra-ap-rustc_lexer = { version = "0.20.0" }
+ra-ap-rustc_lexer = { version = "0.21.0" }
 ra-ap-rustc_parse_format = { version = "0.20.0", default-features = false }
 ra-ap-rustc_index = { version = "0.20.0", default-features = false }
 ra-ap-rustc_abi = { version = "0.20.0", default-features = false }