diff --git a/src/tools/rust-analyzer/crates/syntax/Cargo.toml b/src/tools/rust-analyzer/crates/syntax/Cargo.toml
index d945fa59c9cd..fcb9b0ea354f 100644
--- a/src/tools/rust-analyzer/crates/syntax/Cargo.toml
+++ b/src/tools/rust-analyzer/crates/syntax/Cargo.toml
@@ -16,7 +16,7 @@ doctest = false
 cov-mark = "2.0.0-pre.1"
 either.workspace = true
 itertools.workspace = true
-rowan = "0.15.15"
+rowan = "=0.15.15"
 rustc-hash.workspace = true
 indexmap.workspace = true
 smol_str.workspace = true