diff --git a/src/symbols/symbols_with_libdwarf.cpp b/src/symbols/symbols_with_libdwarf.cpp
index 5095bd0..f505171 100644
--- a/src/symbols/symbols_with_libdwarf.cpp
+++ b/src/symbols/symbols_with_libdwarf.cpp
@@ -1038,6 +1038,9 @@ namespace libdwarf {
     CPPTRACE_FORCE_NO_INLINE_FOR_PROFILING
     std::vector<stacktrace_frame> resolve_frames(const std::vector<object_frame>& frames) {
         std::vector<stacktrace_frame> trace(frames.size(), stacktrace_frame { 0, 0, UINT_LEAST32_MAX, "", "" });
+        static std::mutex mutex;
+        // Locking around all libdwarf interaction per https://github.com/davea42/libdwarf-code/discussions/184
+        const std::lock_guard<std::mutex> lock(mutex);
         for(const auto& obj_entry : collate_frames(frames, trace)) {
             const auto& obj_name = obj_entry.first;
             dwarf_resolver resolver(obj_name);