diff --git a/llvm/lib/Debuginfod/Debuginfod.cpp b/llvm/lib/Debuginfod/Debuginfod.cpp
--- a/llvm/lib/Debuginfod/Debuginfod.cpp
+++ b/llvm/lib/Debuginfod/Debuginfod.cpp
@@ -47,7 +47,7 @@
 
 using llvm::object::BuildIDRef;
 
-static std::string uniqueKey(llvm::StringRef S) { return utostr(xxHash64(S)); }
+static std::string uniqueKey(llvm::StringRef S) { return utostr(xxh3_64bits(S)); }
 
 // Returns a binary BuildID as a normalized hex string.
 // Uses lowercase for compatibility with common debuginfod servers.