diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f68f84c..8888e40 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -27,7 +27,7 @@ message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
 Find_Package(Clang REQUIRED CONFIG HINTS "${LLVM_INSTALL_PREFIX}/lib/cmake/clang")
 message(STATUS "Found Clang in ${CLANG_INSTALL_PREFIX}")
 
-set (CMAKE_CXX_STANDARD 11)
+set (CMAKE_CXX_STANDARD 14)
 
 SET(common_srcs mocng.cpp generator.cpp propertyparser.cpp mocppcallbacks.cpp mocastconsumer.cpp
                 qbjs.cpp clangversionabstraction.cpp workaroundtests.cpp)
diff --git a/src/main.cpp b/src/main.cpp
index ed8132c..4e8f8d0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -448,7 +448,13 @@ int main(int argc, const char **argv)
 
   if (PreprocessorOnly) {
       Argv.push_back("-P");
-      clang::tooling::ToolInvocation Inv(Argv, new clang::PrintPreprocessedAction, &FM);
+      clang::tooling::ToolInvocation Inv(Argv,
+    #if CLANG_VERSION_MAJOR >= 10
+        std::make_unique<clang::PrintPreprocessedAction>(),
+    #else
+        new clang::PrintPreprocessedAction,
+    #endif
+        &FM);
       return !Inv.run();
   }
 
@@ -462,7 +468,13 @@ int main(int argc, const char **argv)
       Argv.push_back("QtCore/qobject.h");
   }
 
-  clang::tooling::ToolInvocation Inv(Argv, new MocAction, &FM);
+  clang::tooling::ToolInvocation Inv(Argv,
+    #if CLANG_VERSION_MAJOR >= 10
+        std::make_unique<MocAction>(),
+    #else
+        new MocAction,
+    #endif
+        &FM);
 
   const EmbeddedFile *f = EmbeddedFiles;
   while (f->filename) {
diff --git a/src/mocng.cpp b/src/mocng.cpp
index b6ef0d9..242384a 100644
--- a/src/mocng.cpp
+++ b/src/mocng.cpp
@@ -156,20 +156,33 @@ static void parsePluginMetaData(ClassDef &Def, clang::Expr *Content, clang::Sema
         else {
             llvm::StringRef Filename = Literal.GetString();
             const clang::DirectoryLookup *CurDir;
-            const clang::FileEntry *File = PP.LookupFile(
-                Val->getSourceRange().getBegin(),
-                Filename, false, nullptr,
-#if CLANG_VERSION_MAJOR!=3 || CLANG_VERSION_MINOR>5
-                nullptr,
-#endif
-                CurDir, nullptr, nullptr, nullptr
-#if CLANG_VERSION_MAJOR >= 5
-                , nullptr
+#if CLANG_VERSION_MAJOR < 10
+            const clang::FileEntry *File =
+#else
+            const clang::Optional<clang::FileEntryRef> fileRef
+                {
 #endif
-#if CLANG_VERSION_MAJOR >= 9
-                , nullptr
+                    PP.LookupFile(
+                                    Val->getSourceRange().getBegin(),
+                                    Filename, false, nullptr,
+                    #if CLANG_VERSION_MAJOR!=3 || CLANG_VERSION_MINOR>5
+                                    nullptr,
+                    #endif
+                                    CurDir, nullptr, nullptr, nullptr
+                    #if CLANG_VERSION_MAJOR >= 5
+                                    , nullptr
+                    #endif
+                    #if CLANG_VERSION_MAJOR >= 9
+                                    , nullptr
+                    #endif
+                    )
+#if CLANG_VERSION_MAJOR >= 10
+                };
+
+            const clang::FileEntry *File = fileRef ? &fileRef->getFileEntry() : nullptr;
+#else
+                    ;
 #endif
-                );
 
             if (!File) {
                 PP.getDiagnostics().Report(GetFromLiteral(StrToks.front(), Val, PP), clang::diag::err_pp_file_not_found)