2 files changed, 2 insertions, 2 deletions

diff --git a/crates/ra_lsp_server/Cargo.toml b/crates/ra_lsp_server/Cargo.toml
index 6342e0628..ef6dea393 100644
--- a/crates/ra_lsp_server/Cargo.toml
+++ b/crates/ra_lsp_server/Cargo.toml
@@ -15,7 +15,7 @@ crossbeam-channel = "0.3.5"
 flexi_logger = "0.10.0"
 log = "0.4.3"
 url_serde = "0.2.0"
-lsp-types = "0.55.0"
+lsp-types = "0.56.0"
 rustc-hash = "1.0"
 parking_lot = "0.7.0"
 
diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs
index 9208ee473..9abd4054e 100644
--- a/crates/ra_lsp_server/src/main_loop/handlers.rs
+++ b/crates/ra_lsp_server/src/main_loop/handlers.rs
@@ -419,7 +419,7 @@ pub fn handle_signature_help(
         Ok(Some(req::SignatureHelp {
             signatures: vec![sig_info],
             active_signature: Some(0),
-            active_parameter: call_info.active_parameter.map(|it| it as u64),
+            active_parameter: call_info.active_parameter.map(|it| it as i64),
         }))
     } else {
         Ok(None)