diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index e730e145fe..ca9c8838db 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -1346,6 +1346,7 @@ impl Inner {
           self
             .diagnostics_server
             .invalidate(&self.documents.dependents(&specifier));
+          self.ts_server.increment_project_version();
           self.send_diagnostics_update();
           self.send_testing_update();
         }
@@ -1390,6 +1391,7 @@ impl Inner {
       let mut specifiers = self.documents.dependents(&specifier);
       specifiers.push(specifier.clone());
       self.diagnostics_server.invalidate(&specifiers);
+      self.ts_server.increment_project_version();
       self.send_diagnostics_update();
       self.send_testing_update();
     }
@@ -1442,6 +1444,7 @@ impl Inner {
     self.refresh_documents_config().await;
 
     self.diagnostics_server.invalidate_all();
+    self.ts_server.increment_project_version();
     self.send_diagnostics_update();
     self.send_testing_update();
   }
@@ -3303,6 +3306,7 @@ impl tower_lsp::LanguageServer for LanguageServer {
       inner.refresh_npm_specifiers().await;
       let specifiers = inner.documents.dependents(&specifier);
       inner.diagnostics_server.invalidate(&specifiers);
+      inner.ts_server.increment_project_version();
       inner.send_diagnostics_update();
       inner.send_testing_update();
     }
@@ -3393,6 +3397,7 @@ impl tower_lsp::LanguageServer for LanguageServer {
       let mut ls = self.0.write().await;
       ls.refresh_documents_config().await;
       ls.diagnostics_server.invalidate_all();
+      ls.ts_server.increment_project_version();
       ls.send_diagnostics_update();
     }
     performance.measure(mark);
diff --git a/cli/lsp/tsc.rs b/cli/lsp/tsc.rs
index c3d16f038a..32421ba697 100644
--- a/cli/lsp/tsc.rs
+++ b/cli/lsp/tsc.rs
@@ -70,6 +70,8 @@ use std::net::SocketAddr;
 use std::ops::Range;
 use std::path::Path;
 use std::rc::Rc;
+use std::sync::atomic::AtomicUsize;
+use std::sync::atomic::Ordering;
 use std::sync::Arc;
 use std::thread;
 use text_size::TextRange;
@@ -220,6 +222,7 @@ pub struct TsServer {
   sender: mpsc::UnboundedSender<Request>,
   receiver: Mutex<Option<mpsc::UnboundedReceiver<Request>>>,
   specifier_map: Arc<TscSpecifierMap>,
+  project_version: Arc<AtomicUsize>,
   inspector_server: Mutex<Option<Arc<InspectorServer>>>,
 }
 
@@ -231,6 +234,7 @@ impl std::fmt::Debug for TsServer {
       .field("sender", &self.sender)
       .field("receiver", &self.receiver)
       .field("specifier_map", &self.specifier_map)
+      .field("project_version", &self.project_version)
       .field("inspector_server", &self.inspector_server.lock().is_some())
       .finish()
   }
@@ -245,6 +249,7 @@ impl TsServer {
       sender: tx,
       receiver: Mutex::new(Some(request_rx)),
       specifier_map: Arc::new(TscSpecifierMap::new()),
+      project_version: Arc::new(AtomicUsize::new(1)),
       inspector_server: Mutex::new(None),
     }
   }
@@ -267,12 +272,14 @@ impl TsServer {
     let performance = self.performance.clone();
     let cache = self.cache.clone();
     let specifier_map = self.specifier_map.clone();
+    let project_version = self.project_version.clone();
     let _join_handle = thread::spawn(move || {
       run_tsc_thread(
         receiver,
         performance.clone(),
         cache.clone(),
         specifier_map.clone(),
+        project_version,
         maybe_inspector_server,
       )
     });
@@ -354,6 +361,10 @@ impl TsServer {
     self.request(snapshot, req).await
   }
 
+  pub fn increment_project_version(&self) {
+    self.project_version.fetch_add(1, Ordering::Relaxed);
+  }
+
   pub async fn get_supported_code_fixes(
     &self,
     snapshot: Arc<StateSnapshot>,
@@ -3830,6 +3841,7 @@ struct State {
   response: Option<Response>,
   state_snapshot: Arc<StateSnapshot>,
   specifier_map: Arc<TscSpecifierMap>,
+  project_version: Arc<AtomicUsize>,
   token: CancellationToken,
 }
 
@@ -3838,6 +3850,7 @@ impl State {
     state_snapshot: Arc<StateSnapshot>,
     specifier_map: Arc<TscSpecifierMap>,
     performance: Arc<Performance>,
+    project_version: Arc<AtomicUsize>,
   ) -> Self {
     Self {
       last_id: 1,
@@ -3845,6 +3858,7 @@ impl State {
       response: None,
       state_snapshot,
       specifier_map,
+      project_version,
       token: Default::default(),
     }
   }
@@ -4058,11 +4072,22 @@ fn op_script_version(
   Ok(r)
 }
 
+#[op2]
+#[string]
+fn op_project_version(state: &mut OpState) -> String {
+  let state = state.borrow_mut::<State>();
+  let mark = state.performance.mark("tsc.op.op_project_version");
+  let r = state.project_version.load(Ordering::Relaxed).to_string();
+  state.performance.measure(mark);
+  r
+}
+
 fn run_tsc_thread(
   mut request_rx: UnboundedReceiver<Request>,
   performance: Arc<Performance>,
   cache: Arc<dyn HttpCache>,
   specifier_map: Arc<TscSpecifierMap>,
+  project_version: Arc<AtomicUsize>,
   maybe_inspector_server: Option<Arc<InspectorServer>>,
 ) {
   let has_inspector_server = maybe_inspector_server.is_some();
@@ -4070,7 +4095,12 @@ fn run_tsc_thread(
   // supplied snapshot is an isolate that contains the TypeScript language
   // server.
   let mut tsc_runtime = JsRuntime::new(RuntimeOptions {
-    extensions: vec![deno_tsc::init_ops(performance, cache, specifier_map)],
+    extensions: vec![deno_tsc::init_ops(
+      performance,
+      cache,
+      specifier_map,
+      project_version,
+    )],
     startup_snapshot: Some(tsc::compiler_snapshot()),
     inspector: maybe_inspector_server.is_some(),
     ..Default::default()
@@ -4137,11 +4167,13 @@ deno_core::extension!(deno_tsc,
     op_respond,
     op_script_names,
     op_script_version,
+    op_project_version,
   ],
   options = {
     performance: Arc<Performance>,
     cache: Arc<dyn HttpCache>,
     specifier_map: Arc<TscSpecifierMap>,
+    project_version: Arc<AtomicUsize>,
   },
   state = |state, options| {
     state.put(State::new(
@@ -4155,6 +4187,7 @@ deno_core::extension!(deno_tsc,
       }),
       options.specifier_map,
       options.performance,
+      options.project_version,
     ));
   },
 );
@@ -5082,6 +5115,7 @@ mod tests {
         b"export const b = \"b\";\n\nexport const a = \"b\";\n",
       )
       .unwrap();
+    ts_server.increment_project_version();
     let specifier = resolve_url("file:///a.ts").unwrap();
     let diagnostics = ts_server
       .get_diagnostics(snapshot.clone(), vec![specifier], Default::default())
diff --git a/cli/tests/integration/lsp_tests.rs b/cli/tests/integration/lsp_tests.rs
index 0e8bbd2afd..badc3b7efe 100644
--- a/cli/tests/integration/lsp_tests.rs
+++ b/cli/tests/integration/lsp_tests.rs
@@ -8269,6 +8269,7 @@ fn lsp_performance() {
       "tsc.host.getQuickInfoAtPosition",
       "tsc.op.op_is_node_file",
       "tsc.op.op_load",
+      "tsc.op.op_project_version",
       "tsc.op.op_script_names",
       "tsc.op.op_script_version",
       "tsc.request.$configure",
diff --git a/cli/tsc/99_main_compiler.js b/cli/tsc/99_main_compiler.js
index e1b7b462c6..b4b5398bcf 100644
--- a/cli/tsc/99_main_compiler.js
+++ b/cli/tsc/99_main_compiler.js
@@ -534,6 +534,9 @@ delete Object.prototype.__proto__;
       // createLanguageService will call this immediately and cache it
       return new CancellationToken();
     },
+    getProjectVersion() {
+      return ops.op_project_version();
+    },
     getSourceFile(
       specifier,
       languageVersion,
@@ -584,6 +587,9 @@ delete Object.prototype.__proto__;
       );
       sourceFile.moduleName = specifier;
       sourceFile.version = version;
+      if (specifier.startsWith(ASSETS_URL_PREFIX)) {
+        sourceFile.version = "1";
+      }
       sourceFileCache.set(specifier, sourceFile);
       scriptVersionCache.set(specifier, version);
       return sourceFile;
@@ -721,6 +727,9 @@ delete Object.prototype.__proto__;
       if (logDebug) {
         debug(`host.getScriptVersion("${specifier}")`);
       }
+      if (specifier.startsWith(ASSETS_URL_PREFIX)) {
+        return "1";
+      }
       // tsc requests the script version multiple times even though it can't
       // possibly have changed, so we will memoize it on a per request basis.
       if (scriptVersionCache.has(specifier)) {