diff --git a/Cargo.lock b/Cargo.lock
index cfb081e187..504a5633f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -337,8 +337,8 @@ version = "0.1.0"
 dependencies = [
  "crossbeam-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "languageserver-types 0.53.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lsp-types 0.54.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -411,21 +411,6 @@ name = "join_to_string"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "languageserver-types"
-version = "0.53.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-derive 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "lazy_static"
 version = "1.2.0"
@@ -453,6 +438,21 @@ dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "lsp-types"
+version = "0.54.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-derive 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "maplit"
 version = "1.0.1"
@@ -730,8 +730,8 @@ dependencies = [
  "flexi_logger 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "gen_lsp_server 0.1.0",
  "im 12.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "languageserver-types 0.53.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lsp-types 0.54.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_arena 0.1.0",
  "ra_ide_api 0.1.0",
@@ -1526,11 +1526,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5b8467d9c1cebe26feb08c640139247fac215782d35371ade9a2136ed6085358"
 "checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
 "checksum join_to_string 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4dc7a5290e8c2606ce2be49f456d50f69173cb96d1541e4f66e34ac8b331a98f"
-"checksum languageserver-types 0.53.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7c01845f71b8b3b3557a8179af4434a4b2570829da12371f05272d28183a06ce"
 "checksum lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a374c89b9db55895453a74c1e38861d9deec0b01b405a82516e9d5de4820dea1"
 "checksum libc 0.2.46 (registry+https://github.com/rust-lang/crates.io-index)" = "023a4cd09b2ff695f9734c1934145a315594b7986398496841c7031a5a1bbdbd"
 "checksum lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "62ebf1391f6acad60e5c8b43706dde4582df75c06698ab44511d15016bc2442c"
 "checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
+"checksum lsp-types 0.54.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a252cc2be87d9329dd91c505a951996b3263582ba304870960faaae77b642183"
 "checksum maplit 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "08cbb6b4fef96b6d77bfc40ec491b1690c779e77b05cd9f07f787ed376fd4c43"
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 "checksum memchr 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "db4c41318937f6e76648f42826b1d9ade5c09cafb5aef7e351240a70f39206e9"
diff --git a/crates/gen_lsp_server/Cargo.toml b/crates/gen_lsp_server/Cargo.toml
index a421a3e0bd..0411517411 100644
--- a/crates/gen_lsp_server/Cargo.toml
+++ b/crates/gen_lsp_server/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 description = "Generic LSP server scaffold."
 
 [dependencies]
-languageserver-types = "0.53.1"
+lsp-types = "0.54.0"
 log = "0.4.3"
 failure = "0.1.4"
 serde_json = "1.0.34"
diff --git a/crates/gen_lsp_server/src/lib.rs b/crates/gen_lsp_server/src/lib.rs
index 16ac799ace..edbdda6c8c 100644
--- a/crates/gen_lsp_server/src/lib.rs
+++ b/crates/gen_lsp_server/src/lib.rs
@@ -6,12 +6,12 @@
 //!
 //! ```no_run
 //! extern crate gen_lsp_server;
-//! extern crate languageserver_types;
+//! extern crate lsp_types;
 //! extern crate failure;
 //! extern crate crossbeam_channel;
 //!
 //! use crossbeam_channel::{Sender, Receiver};
-//! use languageserver_types::{ServerCapabilities, InitializeParams, request::{GotoDefinition, GotoDefinitionResponse}};
+//! use lsp_types::{ServerCapabilities, InitializeParams, request::{GotoDefinition, GotoDefinitionResponse}};
 //! use gen_lsp_server::{run_server, stdio_transport, handle_shutdown, RawMessage, RawResponse};
 //!
 //! fn main() -> Result<(), failure::Error> {
@@ -65,7 +65,7 @@ mod msg;
 mod stdio;
 
 use crossbeam_channel::{Receiver, Sender};
-use languageserver_types::{
+use lsp_types::{
     notification::{Exit, Initialized},
     request::{Initialize, Shutdown},
     InitializeParams, InitializeResult, ServerCapabilities,
diff --git a/crates/gen_lsp_server/src/msg.rs b/crates/gen_lsp_server/src/msg.rs
index 94bef374ce..818111fe7e 100644
--- a/crates/gen_lsp_server/src/msg.rs
+++ b/crates/gen_lsp_server/src/msg.rs
@@ -1,6 +1,6 @@
 use std::io::{BufRead, Write};
 
-use languageserver_types::{notification::Notification, request::Request};
+use lsp_types::{notification::Notification, request::Request};
 use serde::{Deserialize, Serialize};
 use serde_json::{from_str, from_value, to_string, to_value, Value};
 use failure::{bail, format_err};
diff --git a/crates/ra_lsp_server/Cargo.toml b/crates/ra_lsp_server/Cargo.toml
index 7e307eb1ce..0557897fdb 100644
--- a/crates/ra_lsp_server/Cargo.toml
+++ b/crates/ra_lsp_server/Cargo.toml
@@ -17,7 +17,7 @@ crossbeam-channel = "0.3.5"
 flexi_logger = "0.10.0"
 log = "0.4.3"
 url_serde = "0.2.0"
-languageserver-types = "0.53.1"
+lsp-types = "0.54.0"
 walkdir = "2.2.7"
 im = "12.0.0"
 cargo_metadata = "0.6.0"
diff --git a/crates/ra_lsp_server/src/caps.rs b/crates/ra_lsp_server/src/caps.rs
index be6a6ead6d..bca079d65e 100644
--- a/crates/ra_lsp_server/src/caps.rs
+++ b/crates/ra_lsp_server/src/caps.rs
@@ -1,4 +1,4 @@
-use languageserver_types::{
+use lsp_types::{
     CodeActionProviderCapability, CodeLensOptions, CompletionOptions, DocumentOnTypeFormattingOptions,
     ExecuteCommandOptions, FoldingRangeProviderCapability, RenameOptions, RenameProviderCapability,
     ServerCapabilities, SignatureHelpOptions, TextDocumentSyncCapability, TextDocumentSyncKind,
diff --git a/crates/ra_lsp_server/src/conv.rs b/crates/ra_lsp_server/src/conv.rs
index 687663d8a6..6e187d49e2 100644
--- a/crates/ra_lsp_server/src/conv.rs
+++ b/crates/ra_lsp_server/src/conv.rs
@@ -1,4 +1,4 @@
-use languageserver_types::{
+use lsp_types::{
     self, CreateFile, DocumentChangeOperation, DocumentChanges, InsertTextFormat, Location, LocationLink,
     Position, Range, RenameFile, ResourceOp, SymbolKind, TextDocumentEdit, TextDocumentIdentifier,
     TextDocumentItem, TextDocumentPositionParams, Url, VersionedTextDocumentIdentifier,
@@ -51,10 +51,10 @@ impl Conv for SyntaxKind {
 }
 
 impl Conv for CompletionItemKind {
-    type Output = ::languageserver_types::CompletionItemKind;
+    type Output = ::lsp_types::CompletionItemKind;
 
     fn conv(self) -> <Self as Conv>::Output {
-        use languageserver_types::CompletionItemKind::*;
+        use lsp_types::CompletionItemKind::*;
         match self {
             CompletionItemKind::Keyword => Keyword,
             CompletionItemKind::Snippet => Snippet,
@@ -75,10 +75,10 @@ impl Conv for CompletionItemKind {
 }
 
 impl Conv for CompletionItem {
-    type Output = ::languageserver_types::CompletionItem;
+    type Output = ::lsp_types::CompletionItem;
 
     fn conv(self) -> <Self as Conv>::Output {
-        let mut res = ::languageserver_types::CompletionItem {
+        let mut res = ::lsp_types::CompletionItem {
             label: self.label().to_string(),
             detail: self.detail().map(|it| it.to_string()),
             filter_text: Some(self.lookup().to_string()),
@@ -148,9 +148,9 @@ impl ConvWith for Range {
 
 impl ConvWith for TextEdit {
     type Ctx = LineIndex;
-    type Output = Vec<languageserver_types::TextEdit>;
+    type Output = Vec<lsp_types::TextEdit>;
 
-    fn conv_with(self, line_index: &LineIndex) -> Vec<languageserver_types::TextEdit> {
+    fn conv_with(self, line_index: &LineIndex) -> Vec<lsp_types::TextEdit> {
         self.as_atoms()
             .into_iter()
             .map_conv_with(line_index)
@@ -160,10 +160,10 @@ impl ConvWith for TextEdit {
 
 impl<'a> ConvWith for &'a AtomTextEdit {
     type Ctx = LineIndex;
-    type Output = languageserver_types::TextEdit;
+    type Output = lsp_types::TextEdit;
 
-    fn conv_with(self, line_index: &LineIndex) -> languageserver_types::TextEdit {
-        languageserver_types::TextEdit {
+    fn conv_with(self, line_index: &LineIndex) -> lsp_types::TextEdit {
+        lsp_types::TextEdit {
             range: self.delete.conv_with(line_index),
             new_text: self.insert.clone(),
         }
@@ -324,7 +324,7 @@ impl TryConvWith for FileSystemEdit {
     fn try_conv_with(self, world: &ServerWorld) -> Result<ResourceOp> {
         let res = match self {
             FileSystemEdit::CreateFile { source_root, path } => {
-                let uri = world.path_to_uri(source_root, &path)?.to_string();
+                let uri = world.path_to_uri(source_root, &path)?;
                 ResourceOp::Create(CreateFile { uri, options: None })
             }
             FileSystemEdit::MoveFile {
@@ -332,8 +332,8 @@ impl TryConvWith for FileSystemEdit {
                 dst_source_root,
                 dst_path,
             } => {
-                let old_uri = world.file_id_to_uri(src)?.to_string();
-                let new_uri = world.path_to_uri(dst_source_root, &dst_path)?.to_string();
+                let old_uri = world.file_id_to_uri(src)?;
+                let new_uri = world.path_to_uri(dst_source_root, &dst_path)?;
                 ResourceOp::Rename(RenameFile {
                     old_uri,
                     new_uri,
@@ -361,7 +361,7 @@ pub fn to_location_link(
     // line index for original range file
     line_index: &LineIndex,
 ) -> Result<LocationLink> {
-    let url = target.info.file_id().try_conv_with(world)?;
+    let target_uri = target.info.file_id().try_conv_with(world)?;
     let tgt_line_index = world.analysis().file_line_index(target.info.file_id());
 
     let target_range = target.info.full_range().conv_with(&tgt_line_index);
@@ -374,7 +374,7 @@ pub fn to_location_link(
 
     let res = LocationLink {
         origin_selection_range: Some(target.range.conv_with(line_index)),
-        target_uri: url.to_string(),
+        target_uri,
         target_range,
         target_selection_range: Some(target_selection_range),
     };
diff --git a/crates/ra_lsp_server/src/main_loop.rs b/crates/ra_lsp_server/src/main_loop.rs
index 03c834dbc1..19fd294e0b 100644
--- a/crates/ra_lsp_server/src/main_loop.rs
+++ b/crates/ra_lsp_server/src/main_loop.rs
@@ -9,7 +9,7 @@ use failure_derive::Fail;
 use gen_lsp_server::{
     handle_shutdown, ErrorCode, RawMessage, RawNotification, RawRequest, RawResponse,
 };
-use languageserver_types::NumberOrString;
+use lsp_types::NumberOrString;
 use ra_ide_api::{Canceled, FileId, LibraryData};
 use ra_vfs::VfsTask;
 use rayon;
diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs
index 7326a727dc..11a7052004 100644
--- a/crates/ra_lsp_server/src/main_loop/handlers.rs
+++ b/crates/ra_lsp_server/src/main_loop/handlers.rs
@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 
 use gen_lsp_server::ErrorCode;
-use languageserver_types::{
+use lsp_types::{
     CodeActionResponse, CodeLens, Command, Diagnostic, DiagnosticSeverity,
     DocumentFormattingParams, DocumentHighlight, DocumentSymbol, Documentation, FoldingRange,
     FoldingRangeKind, FoldingRangeParams, Hover, HoverContents, Location, MarkupContent,
diff --git a/crates/ra_lsp_server/src/req.rs b/crates/ra_lsp_server/src/req.rs
index c2b16725b7..156cf96411 100644
--- a/crates/ra_lsp_server/src/req.rs
+++ b/crates/ra_lsp_server/src/req.rs
@@ -1,9 +1,9 @@
-use languageserver_types::{Location, Position, Range, TextDocumentIdentifier, Url};
+use lsp_types::{Location, Position, Range, TextDocumentIdentifier, Url};
 use rustc_hash::FxHashMap;
 use serde::{Deserialize, Serialize};
 use url_serde;
 
-pub use languageserver_types::{
+pub use lsp_types::{
     notification::*, request::*, ApplyWorkspaceEditParams, CodeActionParams, CodeLens, CodeLensParams,
     CompletionParams, CompletionResponse, DocumentOnTypeFormattingParams, DocumentSymbolParams,
     DocumentSymbolResponse, ExecuteCommandParams, Hover, InitializeResult,
diff --git a/crates/ra_lsp_server/src/server_world.rs b/crates/ra_lsp_server/src/server_world.rs
index d5dbf999fd..c24ded9f97 100644
--- a/crates/ra_lsp_server/src/server_world.rs
+++ b/crates/ra_lsp_server/src/server_world.rs
@@ -3,7 +3,7 @@ use std::{
     sync::Arc,
 };
 
-use languageserver_types::Url;
+use lsp_types::Url;
 use ra_ide_api::{
     Analysis, AnalysisChange, AnalysisHost, CrateGraph, FileId, LibraryData,
     SourceRootId
diff --git a/crates/ra_lsp_server/tests/heavy_tests/main.rs b/crates/ra_lsp_server/tests/heavy_tests/main.rs
index 02d62a2591..8b5c43a092 100644
--- a/crates/ra_lsp_server/tests/heavy_tests/main.rs
+++ b/crates/ra_lsp_server/tests/heavy_tests/main.rs
@@ -5,7 +5,7 @@ use std::{
     time::Instant,
 };
 
-use languageserver_types::{
+use lsp_types::{
     CodeActionContext, DocumentFormattingParams, FormattingOptions, Position, Range,
 };
 use ra_lsp_server::req::{
diff --git a/crates/ra_lsp_server/tests/heavy_tests/support.rs b/crates/ra_lsp_server/tests/heavy_tests/support.rs
index 46107b6b60..57a8b4f4df 100644
--- a/crates/ra_lsp_server/tests/heavy_tests/support.rs
+++ b/crates/ra_lsp_server/tests/heavy_tests/support.rs
@@ -9,7 +9,7 @@ use std::{
 use crossbeam_channel::{after, select, Receiver};
 use flexi_logger::Logger;
 use gen_lsp_server::{RawMessage, RawNotification, RawRequest};
-use languageserver_types::{
+use lsp_types::{
     notification::DidOpenTextDocument,
     request::{Request, Shutdown},
     DidOpenTextDocumentParams, TextDocumentIdentifier, TextDocumentItem, Url,