1 files changed, 1 insertions, 1 deletions

diff --git a/crates/syntax/Cargo.toml b/crates/syntax/Cargo.toml
index 05fca5dc4..c0fd894b0 100644
--- a/crates/syntax/Cargo.toml
+++ b/crates/syntax/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 doctest = false
 
 [dependencies]
-cov-mark = "1.1"
+cov-mark = { version = "1.1", features = ["thread-local"] }
 itertools = "0.10.0"
 rowan = "0.12.2"
 rustc_lexer = { version = "710.0.0", package = "rustc-ap-rustc_lexer" }