diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9f246098e7..ec3128d9ec 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -86,6 +86,12 @@ jobs:
       - name: Test
         run: cargo test ${{ env.USE_SYSROOT_ABI }} -- --nocapture --quiet
 
+      - name: Switch to stable toolchain
+        run: |
+          rustup update --no-self-update stable
+          rustup component add --toolchain stable rust-src
+          rustup default stable
+
       - name: Run analysis-stats on rust-analyzer
         if: matrix.os == 'ubuntu-latest'
         run: target/${{ matrix.target }}/debug/rust-analyzer analysis-stats .
diff --git a/Cargo.lock b/Cargo.lock
index 49e96236c5..cf364d28de 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -999,7 +999,7 @@ checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
 
 [[package]]
 name = "lsp-server"
-version = "0.7.3"
+version = "0.7.4"
 dependencies = [
  "crossbeam-channel",
  "log",
@@ -1010,9 +1010,9 @@ dependencies = [
 
 [[package]]
 name = "lsp-server"
-version = "0.7.3"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72417faa455bfb4e5bf14b157d8e2ca2ed74b4e89b8cf42ea2d864825ae5c8a2"
+checksum = "b52dccdf3302eefab8c8a1273047f0a3c3dca4b527c8458d00c09484c8371928"
 dependencies = [
  "crossbeam-channel",
  "log",
@@ -1555,7 +1555,7 @@ dependencies = [
  "ide-ssr",
  "itertools",
  "load-cargo",
- "lsp-server 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lsp-server 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "lsp-types",
  "mbe",
  "mimalloc",
diff --git a/Cargo.toml b/Cargo.toml
index 5eb59d6db1..e97e58f527 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -86,7 +86,7 @@ proc-macro-test = { path = "./crates/proc-macro-test" }
 # In-tree crates that are published separately and follow semver. See lib/README.md
 line-index = { version = "0.1.0-pre.1" }
 la-arena = { version = "0.3.1" }
-lsp-server = { version = "0.7.3" }
+lsp-server = { version = "0.7.4" }
 
 # non-local crates
 smallvec = { version = "1.10.0", features = [
@@ -97,8 +97,7 @@ smallvec = { version = "1.10.0", features = [
 smol_str = "0.2.0"
 nohash-hasher = "0.2.0"
 text-size = "1.1.0"
-# See https://github.com/serde-rs/serde/issues/2538#issuecomment-1684517372 for why we pin serde
-serde = { version = "1.0.156, < 1.0.172", features = ["derive"] }
+serde = { version = "1.0.156", features = ["derive"] }
 serde_json = "1.0.96"
 triomphe = { version = "0.1.8", default-features = false, features = ["std"] }
 # can't upgrade due to dashmap depending on 0.12.3 currently
diff --git a/crates/hir-def/src/import_map.rs b/crates/hir-def/src/import_map.rs
index 6038caaf8f..c961d7d86d 100644
--- a/crates/hir-def/src/import_map.rs
+++ b/crates/hir-def/src/import_map.rs
@@ -108,7 +108,11 @@ fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemIn
 
         let visible_items = mod_data.scope.entries().filter_map(|(name, per_ns)| {
             let per_ns = per_ns.filter_visibility(|vis| vis == Visibility::Public);
-            if per_ns.is_none() { None } else { Some((name, per_ns)) }
+            if per_ns.is_none() {
+                None
+            } else {
+                Some((name, per_ns))
+            }
         });
 
         for (name, per_ns) in visible_items {
diff --git a/crates/rust-analyzer/src/cli/scip.rs b/crates/rust-analyzer/src/cli/scip.rs
index 44337f955e..8c056fff00 100644
--- a/crates/rust-analyzer/src/cli/scip.rs
+++ b/crates/rust-analyzer/src/cli/scip.rs
@@ -51,7 +51,7 @@ impl flags::Scip {
             version: scip_types::ProtocolVersion::UnspecifiedProtocolVersion.into(),
             tool_info: Some(scip_types::ToolInfo {
                 name: "rust-analyzer".to_owned(),
-                version: "0.1".to_owned(),
+                version: format!("{}", crate::version::version()),
                 arguments: vec![],
                 special_fields: Default::default(),
             })
diff --git a/crates/rust-analyzer/tests/slow-tests/main.rs b/crates/rust-analyzer/tests/slow-tests/main.rs
index 0bb29e7080..ed6ef47c8e 100644
--- a/crates/rust-analyzer/tests/slow-tests/main.rs
+++ b/crates/rust-analyzer/tests/slow-tests/main.rs
@@ -861,6 +861,7 @@ edition = "2021"
 bar = {path = "../bar"}
 
 //- /foo/src/main.rs
+#![allow(internal_features)]
 #![feature(rustc_attrs, decl_macro)]
 use bar::Bar;
 
@@ -938,7 +939,7 @@ pub fn foo(_input: TokenStream) -> TokenStream {
     let res = server.send_request::<HoverRequest>(HoverParams {
         text_document_position_params: TextDocumentPositionParams::new(
             server.doc_id("foo/src/main.rs"),
-            Position::new(11, 9),
+            Position::new(12, 9),
         ),
         work_done_progress_params: Default::default(),
     });
diff --git a/lib/lsp-server/Cargo.toml b/lib/lsp-server/Cargo.toml
index e1c49db39d..7ec3247e94 100644
--- a/lib/lsp-server/Cargo.toml
+++ b/lib/lsp-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lsp-server"
-version = "0.7.3"
+version = "0.7.4"
 description = "Generic LSP server scaffold."
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rust-lang/rust-analyzer/tree/master/lib/lsp-server"
@@ -9,8 +9,7 @@ edition = "2021"
 [dependencies]
 log = "0.4.17"
 serde_json = "1.0.96"
-# See https://github.com/serde-rs/serde/issues/2538#issuecomment-1684517372 for why we pin serde
-serde = { version = "1.0.156, < 1.0.172", features = ["derive"] }
+serde = { version = "1.0.156", features = ["derive"] }
 crossbeam-channel = "0.5.6"
 
 [dev-dependencies]