diff --git a/pkgs/os-specific/darwin/libtapi/default.nix b/pkgs/os-specific/darwin/libtapi/default.nix
index a6bc16d42f91..8c83b4ae1e69 100644
--- a/pkgs/os-specific/darwin/libtapi/default.nix
+++ b/pkgs/os-specific/darwin/libtapi/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libtapi";
-  version = "1000.10.8"; # determined by looking at VERSION.txt
+  version = "1100.0.11"; # determined by looking at VERSION.txt
 
   src = fetchFromGitHub {
     owner = "tpoechtrager";
     repo = "apple-libtapi";
-    rev = "3cb307764cc5f1856c8a23bbdf3eb49dfc6bea48";
-    sha256 = "1zb10p6xkls8x7wsdwgy9c0v16z97rfkgidii9ffq5rfczgvrhjh";
+    rev = "664b8414f89612f2dfd35a9b679c345aa5389026";
+    sha256 = "1y1yl46msabfy14z0rln333a06087bk14f5h7q1cdawn8nmvbdbr";
   };
 
   sourceRoot = "source/src/llvm";
@@ -31,9 +31,9 @@ stdenv.mkDerivation rec {
     cmakeFlagsArray+=(-DCMAKE_CXX_FLAGS="$INCLUDE_FIX")
   '';
 
-  buildFlags = [ "clangBasic" "libtapi" ];
+  buildFlags = [ "clangBasic" "libtapi" "tapi" ];
 
-  installTargets = [ "install-libtapi" "install-tapi-headers" ];
+  installTargets = [ "install-libtapi" "install-tapi-headers" "install-tapi" ];
 
   postInstall = lib.optionalString stdenv.isDarwin ''
     install_name_tool -id $out/lib/libtapi.dylib $out/lib/libtapi.dylib