diff --git a/lldb/scripts/build-llvm.pl b/lldb/scripts/build-llvm.pl
index 5f9adc6e34c2..834920f7e8f2 100644
--- a/lldb/scripts/build-llvm.pl
+++ b/lldb/scripts/build-llvm.pl
@@ -22,8 +22,8 @@ our @llvm_clang_slices; # paths to the single architecture static libraries (arc
 
 our $llvm_configuration = $ENV{LLVM_CONFIGURATION};
 
-our $llvm_revision = "142634";
-our $clang_revision = "142634";
+our $llvm_revision = "143472";
+our $clang_revision = "143472";
 
 our $llvm_source_dir = "$ENV{SRCROOT}";
 our @archs = split (/\s+/, $ENV{ARCHS});