diff --git a/pkgs/development/compilers/ispc/default.nix b/pkgs/development/compilers/ispc/default.nix
index d8b8c141042b..0c710b0736a3 100644
--- a/pkgs/development/compilers/ispc/default.nix
+++ b/pkgs/development/compilers/ispc/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname   = "ispc";
-  version = "1.22.0";
+  version = "1.23.0";
 
   src = fetchFromGitHub {
     owner  = pname;
     repo   = pname;
     rev    = "v${version}";
-    sha256 = "sha256-NiBwQ7BzNgRdWLvjOi1fQni+vnYwn0nLHxqAVucmb2k=";
+    sha256 = "sha256-zixPt7YICCG0N8t1pcXEu/sPKCVLQVPCiJsQEqEXl+A=";
   };
 
   nativeBuildInputs = [ cmake which m4 bison flex python3 llvmPackages.libllvm.dev tbb ] ++ lib.lists.optionals stdenv.isDarwin [ xcode ];
@@ -55,7 +55,6 @@ stdenv.mkDerivation rec {
     "-DFILE_CHECK_EXECUTABLE=${llvmPackages.llvm}/bin/FileCheck"
     "-DLLVM_AS_EXECUTABLE=${llvmPackages.llvm}/bin/llvm-as"
     "-DLLVM_CONFIG_EXECUTABLE=${llvmPackages.llvm.dev}/bin/llvm-config"
-    "-DLLVM_DIS_EXECUTABLE=${llvmPackages.llvm}/bin/llvm-dis"
     "-DCLANG_EXECUTABLE=${llvmPackages.clang}/bin/clang"
     "-DCLANGPP_EXECUTABLE=${llvmPackages.clang}/bin/clang++"
     "-DISPC_INCLUDE_EXAMPLES=OFF"