diff --git a/Cargo.lock b/Cargo.lock
index 280d974327c..af706281533 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -619,9 +619,9 @@ dependencies = [
 
 [[package]]
 name = "lsp-types"
-version = "0.77.0"
+version = "0.78.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "897c6c8930fbf12b67deffc83729287bb379dd5e5a4bd0ae2d81eff8d6503db6"
+checksum = "d2e6cf68e3492cfa2035f0382c1da1b6ab045db0320feca505b86b4f13d66c27"
 dependencies = [
  "base64",
  "bitflags",
diff --git a/crates/rust-analyzer/Cargo.toml b/crates/rust-analyzer/Cargo.toml
index 023c104d16d..758aa1c5d7d 100644
--- a/crates/rust-analyzer/Cargo.toml
+++ b/crates/rust-analyzer/Cargo.toml
@@ -20,7 +20,7 @@ env_logger = { version = "0.7.1", default-features = false }
 itertools = "0.9.0"
 jod-thread = "0.1.0"
 log = "0.4.8"
-lsp-types = { version = "0.77.0", features = ["proposed"] }
+lsp-types = { version = "0.78.0", features = ["proposed"] }
 parking_lot = "0.11.0"
 pico-args = "0.3.1"
 rand = { version = "0.7.3", features = ["small_rng"] }
diff --git a/crates/rust-analyzer/src/handlers.rs b/crates/rust-analyzer/src/handlers.rs
index d880570d280..8d8c9442b6d 100644
--- a/crates/rust-analyzer/src/handlers.rs
+++ b/crates/rust-analyzer/src/handlers.rs
@@ -15,7 +15,7 @@
     DocumentHighlight, DocumentSymbol, FoldingRange, FoldingRangeParams, HoverContents, Location,
     Position, PrepareRenameResponse, Range, RenameParams, SemanticTokensParams,
     SemanticTokensRangeParams, SemanticTokensRangeResult, SemanticTokensResult, SymbolInformation,
-    TextDocumentIdentifier, Url, WorkspaceEdit,
+    SymbolTag, TextDocumentIdentifier, Url, WorkspaceEdit,
 };
 use ra_ide::{
     FileId, FilePosition, FileRange, HoverAction, HoverGotoTypeData, NavigationTarget, Query,
@@ -253,10 +253,17 @@ pub(crate) fn handle_document_symbol(
     let mut parents: Vec<(DocumentSymbol, Option<usize>)> = Vec::new();
 
     for symbol in snap.analysis.file_structure(file_id)? {
+        let mut tags = Vec::new();
+        if symbol.deprecated {
+            tags.push(SymbolTag::Deprecated)
+        };
+
+        #[allow(deprecated)]
         let doc_symbol = DocumentSymbol {
             name: symbol.label,
             detail: symbol.detail,
             kind: to_proto::symbol_kind(symbol.kind),
+            tags: Some(tags),
             deprecated: Some(symbol.deprecated),
             range: to_proto::range(&line_index, symbol.node_range),
             selection_range: to_proto::range(&line_index, symbol.navigation_range),
@@ -296,9 +303,19 @@ fn flatten_document_symbol(
         url: &Url,
         res: &mut Vec<SymbolInformation>,
     ) {
+        let mut tags = Vec::new();
+
+        #[allow(deprecated)]
+        match symbol.deprecated {
+            Some(true) => tags.push(SymbolTag::Deprecated),
+            _ => {}
+        }
+
+        #[allow(deprecated)]
         res.push(SymbolInformation {
             name: symbol.name.clone(),
             kind: symbol.kind,
+            tags: Some(tags),
             deprecated: symbol.deprecated,
             location: Location::new(url.clone(), symbol.range),
             container_name,
@@ -342,9 +359,12 @@ fn exec_query(snap: &GlobalStateSnapshot, query: Query) -> Result<Vec<SymbolInfo
         let mut res = Vec::new();
         for nav in snap.analysis.symbol_search(query)? {
             let container_name = nav.container_name.as_ref().map(|v| v.to_string());
+
+            #[allow(deprecated)]
             let info = SymbolInformation {
                 name: nav.name.to_string(),
                 kind: to_proto::symbol_kind(nav.kind),
+                tags: None,
                 location: to_proto::location_from_nav(snap, nav)?,
                 container_name,
                 deprecated: None,