diff --git a/README.md b/README.md
index 0571b5b..62164d0 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Download the latest netbeanstypescript.nbm file from the [Releases](https://gith
 
 ### Versioning
 
-The version number of this plugin reflects the version of TypeScript it incorporates (currently 2.3.3), with an extra digit for new versions that do not involve a TypeScript update. We intend to keep this plugin up to date with new versions of TypeScript when they come out.
+The version number of this plugin reflects the version of TypeScript it incorporates (currently 2.4.1), with an extra digit for new versions that do not involve a TypeScript update. We intend to keep this plugin up to date with new versions of TypeScript when they come out.
 
 ### Contributing
 
diff --git a/build.xml b/build.xml
index ecaca3f..f92a498 100644
--- a/build.xml
+++ b/build.xml
@@ -8,7 +8,7 @@
 
     <!-- Paths to the TypeScript installation to copy files from, and the Node.js executable to
          use while building. Adjust these according to your own environment. -->
-    <property name="typescript" value="${env.HOME}/TypeScript-2.3.3"/>
+    <property name="typescript" value="${env.HOME}/TypeScript-2.4.1"/>
     <property name="node.executable" value="node"/>
 
     <target name="compile" depends="projectized-common.compile">
diff --git a/manifest.mf b/manifest.mf
index 9fbc796..10be743 100644
--- a/manifest.mf
+++ b/manifest.mf
@@ -3,4 +3,4 @@ AutoUpdate-Show-In-Client: true
 OpenIDE-Module: netbeanstypescript
 OpenIDE-Module-Layer: netbeanstypescript/resources/layer.xml
 OpenIDE-Module-Localizing-Bundle: netbeanstypescript/Bundle.properties
-OpenIDE-Module-Specification-Version: 2.3.3.0
+OpenIDE-Module-Specification-Version: 2.4.1.0
diff --git a/server/main.ts b/server/main.ts
index 8a1054c..195a53a 100644
--- a/server/main.ts
+++ b/server/main.ts
@@ -341,7 +341,7 @@ class Program {
             node.text && highlight(node.end - node.text.length, node.end, attr);
         }
 
-        var localDecls: ts.Declaration[] = [];
+        var localDecls: ts.NamedDeclaration[] = [];
         var usedSymbols = new Set<ts.Symbol>();
 
         function isGlobal(decl: ts.Node) {
@@ -471,7 +471,7 @@ class Program {
 
         function buildResults(topNode: ts.Node, inFunction: boolean, baseTypes?: [ts.Type, boolean][]) {
             var results: any[] = [];
-            function add(node: ts.Declaration, kind: string, symbol?: ts.Symbol) {
+            function add(node: ts.NamedDeclaration, kind: string, symbol?: ts.Symbol) {
                 var name = node.kind === SK.Constructor ? "constructor" : (<any>node.name).text;
                 if (! name) { // anonymous function
                     return;
diff --git a/server/ts-patches b/server/ts-patches
index 8ef0893..bd05058 100644
--- a/server/ts-patches
+++ b/server/ts-patches
@@ -1,6 +1,6 @@
 --- compiler/checker.ts
 +++ compiler/checker.ts
-@@ -2973,6 +2973,13 @@
+@@ -3128,6 +3128,13 @@
                          appendSymbolNameOnly(symbol, writer);
                      }
                      parentSymbol = symbol;
@@ -16,7 +16,7 @@
                  // Let the writer know we just wrote out a symbol.  The declaration emitter writer uses
 --- services/completions.ts
 +++ services/completions.ts
-@@ -118,6 +118,7 @@
+@@ -124,6 +124,7 @@
              kind: SymbolDisplay.getSymbolKind(typeChecker, symbol, location),
              kindModifiers: SymbolDisplay.getSymbolModifiers(symbol),
              sortText: "0",
@@ -26,7 +26,7 @@
  
 --- services/goToDefinition.ts
 +++ services/goToDefinition.ts
-@@ -82,7 +82,9 @@
+@@ -73,7 +73,9 @@
              const shorthandSymbolName = typeChecker.symbolToString(shorthandSymbol);
              const shorthandContainerName = typeChecker.symbolToString(symbol.parent, node);
              return map(shorthandDeclarations,
@@ -36,8 +36,8 @@
 +                declaration => createDefinitionInfo(declaration, getNodeKind(declaration), shorthandSymbolName, shorthandContainerName));
          }
  
-         if (isJsxOpeningLikeElement(node.parent)) {
-@@ -162,7 +164,9 @@
+         // If the current location we want to find its definition is in an object literal, try to get the contextual type for the
+@@ -159,7 +161,9 @@
              !tryAddCallSignature(symbol, node, symbolKind, symbolName, containerName, result)) {
              // Just add all the declarations.
              forEach(declarations, declaration => {
@@ -50,7 +50,7 @@
  
 --- services/types.ts
 +++ services/types.ts
-@@ -593,6 +593,7 @@
+@@ -654,6 +654,7 @@
          kind: string;            // see ScriptElementKind
          kindModifiers: string;   // see ScriptElementKindModifier, comma separated
          sortText: string;