diff --git a/crates/language/Cargo.toml b/crates/language/Cargo.toml
index b5524913bcc7092b72e6dbf2d55b7393d1bea889..bbbf9e31a5b39069e93a5f52f18df16bbc9f9671 100644
--- a/crates/language/Cargo.toml
+++ b/crates/language/Cargo.toml
@@ -67,6 +67,7 @@ tree-sitter.workspace = true
 unicase = "2.6"
 util.workspace = true
 watch.workspace = true
+zlog.workspace = true
 diffy = "0.4.2"
 
 [dev-dependencies]
diff --git a/crates/language/src/language.rs b/crates/language/src/language.rs
index fb523aeb9e84e49f4d4c9afb0583eacc1e844030..2d1a274381224978246db618301606caf44a60cb 100644
--- a/crates/language/src/language.rs
+++ b/crates/language/src/language.rs
@@ -2589,7 +2589,12 @@ pub fn range_from_lsp(range: lsp::Range) -> Range<Unclipped<PointUtf16>> {
     let mut start = point_from_lsp(range.start);
     let mut end = point_from_lsp(range.end);
     if start > end {
-        log::warn!("range_from_lsp called with inverted range {start:?}-{end:?}");
+        // We debug instead of warn so that this is not logged by default unless explicitly requested.
+        // Using warn would write to the log file, and since we receive an enormous amount of
+        // range_from_lsp calls (especially during completions), that can hang the main thread.
+        //
+        // See issue #36223.
+        zlog::debug!("range_from_lsp called with inverted range {start:?}-{end:?}");
         mem::swap(&mut start, &mut end);
     }
     start..end