diff --git a/ext/include/opentelemetry/ext/zpages/tracez_processor.h b/ext/include/opentelemetry/ext/zpages/tracez_processor.h
index 926e430ead..c96461db74 100644
--- a/ext/include/opentelemetry/ext/zpages/tracez_processor.h
+++ b/ext/include/opentelemetry/ext/zpages/tracez_processor.h
@@ -7,9 +7,9 @@
 #include <utility>
 #include <vector>
 
+#include "opentelemetry/ext/zpages/threadsafe_span_data.h"
 #include "opentelemetry/sdk/trace/processor.h"
 #include "opentelemetry/sdk/trace/recordable.h"
-#include "opentelemetry/sdk/trace/span_data.h"
 
 OPENTELEMETRY_BEGIN_NAMESPACE
 namespace ext
@@ -25,8 +25,8 @@ class TracezSpanProcessor : public opentelemetry::sdk::trace::SpanProcessor
 public:
   struct CollectedSpans
   {
-    std::unordered_set<opentelemetry::sdk::trace::SpanData *> running;
-    std::vector<std::unique_ptr<opentelemetry::sdk::trace::SpanData>> completed;
+    std::unordered_set<ThreadsafeSpanData *> running;
+    std::vector<std::unique_ptr<ThreadsafeSpanData>> completed;
   };
 
   /*
@@ -40,8 +40,7 @@ class TracezSpanProcessor : public opentelemetry::sdk::trace::SpanProcessor
    */
   std::unique_ptr<opentelemetry::sdk::trace::Recordable> MakeRecordable() noexcept override
   {
-    return std::unique_ptr<opentelemetry::sdk::trace::Recordable>(
-        new opentelemetry::sdk::trace::SpanData);
+    return std::unique_ptr<opentelemetry::sdk::trace::Recordable>(new ThreadsafeSpanData);
   }
 
   /*
diff --git a/ext/src/zpages/tracez_processor.cc b/ext/src/zpages/tracez_processor.cc
index 8e1dc5600d..779f6fd061 100644
--- a/ext/src/zpages/tracez_processor.cc
+++ b/ext/src/zpages/tracez_processor.cc
@@ -9,7 +9,7 @@ namespace zpages
 void TracezSpanProcessor::OnStart(opentelemetry::sdk::trace::Recordable &span) noexcept
 {
   std::lock_guard<std::mutex> lock(mtx_);
-  spans_.running.insert(static_cast<opentelemetry::sdk::trace::SpanData *>(&span));
+  spans_.running.insert(static_cast<ThreadsafeSpanData *>(&span));
 }
 
 void TracezSpanProcessor::OnEnd(
@@ -17,14 +17,14 @@ void TracezSpanProcessor::OnEnd(
 {
   if (span == nullptr)
     return;
-  auto span_raw = static_cast<opentelemetry::sdk::trace::SpanData *>(span.get());
+  auto span_raw = static_cast<ThreadsafeSpanData *>(span.get());
   std::lock_guard<std::mutex> lock(mtx_);
   auto span_it = spans_.running.find(span_raw);
   if (span_it != spans_.running.end())
   {
     spans_.running.erase(span_it);
-    spans_.completed.push_back(std::unique_ptr<opentelemetry::sdk::trace::SpanData>(
-        static_cast<opentelemetry::sdk::trace::SpanData *>(span.release())));
+    spans_.completed.push_back(
+        std::unique_ptr<ThreadsafeSpanData>(static_cast<ThreadsafeSpanData *>(span.release())));
   }
 }
 
diff --git a/ext/test/zpages/tracez_processor_test.cc b/ext/test/zpages/tracez_processor_test.cc
index 42a8736302..9d9fb3afe6 100644
--- a/ext/test/zpages/tracez_processor_test.cc
+++ b/ext/test/zpages/tracez_processor_test.cc
@@ -4,8 +4,8 @@
 
 #include <thread>
 
+#include "opentelemetry/ext/zpages/threadsafe_span_data.h"
 #include "opentelemetry/nostd/span.h"
-#include "opentelemetry/sdk/trace/span_data.h"
 #include "opentelemetry/sdk/trace/tracer.h"
 
 using namespace opentelemetry::sdk::trace;
@@ -18,8 +18,8 @@ using namespace opentelemetry::ext::zpages;
  * and running_spans. completed_spans contains all spans (cumulative), unless marked otherwise
  */
 void UpdateSpans(std::shared_ptr<TracezSpanProcessor> &processor,
-                 std::vector<std::unique_ptr<opentelemetry::sdk::trace::SpanData>> &completed,
-                 std::unordered_set<opentelemetry::sdk::trace::SpanData *> &running,
+                 std::vector<std::unique_ptr<ThreadsafeSpanData>> &completed,
+                 std::unordered_set<ThreadsafeSpanData *> &running,
                  bool store_only_new_completed = false)
 {
   auto spans = processor->GetSpanSnapshot();
@@ -47,7 +47,7 @@ void UpdateSpans(std::shared_ptr<TracezSpanProcessor> &processor,
  * no more or less
  */
 bool ContainsNames(const std::vector<std::string> &names,
-                   std::unordered_set<opentelemetry::sdk::trace::SpanData *> &running,
+                   std::unordered_set<ThreadsafeSpanData *> &running,
                    unsigned int name_start        = 0,
                    unsigned int name_end          = 0,
                    bool one_to_one_correspondence = false)
@@ -95,7 +95,7 @@ bool ContainsNames(const std::vector<std::string> &names,
  * no more or less
  */
 bool ContainsNames(const std::vector<std::string> &names,
-                   std::vector<std::unique_ptr<opentelemetry::sdk::trace::SpanData>> &completed,
+                   std::vector<std::unique_ptr<ThreadsafeSpanData>> &completed,
                    unsigned int name_start        = 0,
                    unsigned int name_end          = 0,
                    bool one_to_one_correspondence = false)
@@ -186,8 +186,8 @@ class TracezProcessor : public ::testing::Test
   std::shared_ptr<TracezSpanProcessor> processor;
   std::shared_ptr<opentelemetry::trace::Tracer> tracer;
 
-  std::unordered_set<opentelemetry::sdk::trace::SpanData *> running;
-  std::vector<std::unique_ptr<opentelemetry::sdk::trace::SpanData>> completed;
+  std::unordered_set<ThreadsafeSpanData *> running;
+  std::vector<std::unique_ptr<ThreadsafeSpanData>> completed;
 
   std::vector<std::string> span_names;
   std::vector<opentelemetry::nostd::unique_ptr<opentelemetry::trace::Span>> span_vars;