diff --git a/src/SDK/Trace/Sampler/AlwaysOnSampler.php b/src/SDK/Trace/Sampler/AlwaysOnSampler.php
index 6ac9189e..09af7479 100644
--- a/src/SDK/Trace/Sampler/AlwaysOnSampler.php
+++ b/src/SDK/Trace/Sampler/AlwaysOnSampler.php
@@ -38,7 +38,7 @@ class AlwaysOnSampler implements SamplerInterface
 
         return new SamplingResult(
             SamplingResult::RECORD_AND_SAMPLE,
-            $attributes,
+            null,
             $traceState
         );
     }
diff --git a/src/SDK/Trace/Sampler/TraceIdRatioBasedSampler.php b/src/SDK/Trace/Sampler/TraceIdRatioBasedSampler.php
index 430cb87e..487aab38 100644
--- a/src/SDK/Trace/Sampler/TraceIdRatioBasedSampler.php
+++ b/src/SDK/Trace/Sampler/TraceIdRatioBasedSampler.php
@@ -60,7 +60,7 @@ class TraceIdRatioBasedSampler implements SamplerInterface
         $traceIdCondition = $lowerOrderBytes < round($this->probability * $traceIdLimit);
         $decision = $traceIdCondition ? SamplingResult::RECORD_AND_SAMPLE : SamplingResult::DROP;
 
-        return new SamplingResult($decision, $attributes, $traceState);
+        return new SamplingResult($decision, null, $traceState);
     }
 
     public function getDescription(): string