diff --git a/build/LLVM.lua b/build/LLVM.lua
index 373e41ee..a392ff15 100644
--- a/build/LLVM.lua
+++ b/build/LLVM.lua
@@ -195,8 +195,7 @@ function SetupLLVMLibs()
       "LLVMDebugInfoMSF",
       "LLVMBinaryFormat",
       "LLVMSupport",
-      "LLVMDemangle",
-      "LLVMHelloNew"
+      "LLVMDemangle"
     }
     
   filter(c)
diff --git a/build/llvm/LLVM-commit b/build/llvm/LLVM-commit
index 962728c3..88c24477 100644
--- a/build/llvm/LLVM-commit
+++ b/build/llvm/LLVM-commit
@@ -1 +1 @@
-0c8f9b8099fd0500cd885bc699924e20371014ff
\ No newline at end of file
+c40cea6f083a8a67ea950e058e16d37bb04e8c4b
\ No newline at end of file
diff --git a/src/CppParser/ParseExpr.cpp b/src/CppParser/ParseExpr.cpp
index 841181e4..c175eba6 100644
--- a/src/CppParser/ParseExpr.cpp
+++ b/src/CppParser/ParseExpr.cpp
@@ -2074,7 +2074,7 @@ AST::Expr* Parser::WalkExpression(const clang::Expr* Expr)
         _S->hasPlaceholderType = S->hasPlaceholderType();
         _S->typeAsWritten = GetQualifiedType(S->getTypeAsWritten());
         _S->isListInitialization = S->isListInitialization();
-        _S->arg_size = S->arg_size();
+        _S->arg_size = S->getNumArgs();
         for (auto _E : S->arguments())
         {
             auto _ES = WalkExpression(_E);
diff --git a/src/CppParser/Parser.cpp b/src/CppParser/Parser.cpp
index c70bd444..c8a54bb4 100644
--- a/src/CppParser/Parser.cpp
+++ b/src/CppParser/Parser.cpp
@@ -99,7 +99,7 @@ static CppAbi GetClassLayoutAbi(clang::TargetCXXABI::Kind abi)
         return CppAbi::ARM;
     case clang::TargetCXXABI::iOS:
         return CppAbi::iOS;
-    case clang::TargetCXXABI::iOS64:
+    case clang::TargetCXXABI::AppleARM64:
         return CppAbi::iOS64;
     default:
         llvm_unreachable("Unsupported C++ ABI kind");
@@ -229,7 +229,7 @@ ConvertToClangTargetCXXABI(CppSharp::CppParser::AST::CppAbi abi)
     case CppSharp::CppParser::AST::CppAbi::iOS:
         return TargetCXXABI::iOS;
     case CppSharp::CppParser::AST::CppAbi::iOS64:
-        return TargetCXXABI::iOS64;
+        return TargetCXXABI::AppleARM64;
     }
 
     llvm_unreachable("Unsupported C++ ABI.");
@@ -3707,7 +3707,7 @@ AST::ExpressionObsolete* Parser::WalkVariableInitializerExpression(const clang::
       return WalkExpressionObsolete(Expr);
 
     clang::Expr::EvalResult result;
-    if (Expr->EvaluateAsConstantExpr(result, clang::Expr::ConstExprUsage::EvaluateForCodeGen, c->getASTContext(), false))
+    if (Expr->EvaluateAsConstantExpr(result, c->getASTContext()))
     {
         std::string s;
         llvm::raw_string_ostream out(s);
@@ -4420,9 +4420,9 @@ static ArchType ConvertArchType(unsigned int archType)
 }
 
 template<class ELFT>
-static void ReadELFDependencies(const llvm::object::ELFFile<ELFT>* ELFFile, CppSharp::CppParser::NativeLibrary*& NativeLib)
+static void ReadELFDependencies(const llvm::object::ELFFile<ELFT>& ELFFile, CppSharp::CppParser::NativeLibrary*& NativeLib)
 {
-    ELFDumper<ELFT> ELFDumper(ELFFile);
+    ELFDumper<ELFT> ELFDumper(&ELFFile);
     for (const auto& Dependency : ELFDumper.getNeededLibraries())
         NativeLib->Dependencies.push_back(Dependency.str());
 }