diff --git a/utils/test-agent-utils/decoder/build.gradle.kts b/utils/test-agent-utils/decoder/build.gradle.kts
index be1d8f5df49..844786b398b 100644
--- a/utils/test-agent-utils/decoder/build.gradle.kts
+++ b/utils/test-agent-utils/decoder/build.gradle.kts
@@ -4,10 +4,10 @@ plugins {
 
 apply(from = "$rootDir/gradle/java.gradle")
 
-extra["minimumInstructionCoverage"] = 0.8
 extra["excludedClassesCoverage"] = listOf(
   "datadog.trace.test.agent.decoder.v04.raw.*",
   "datadog.trace.test.agent.decoder.v05.raw.*",
+  "datadog.trace.test.agent.decoder.v1.raw.*",
 )
 
 dependencies {
diff --git a/utils/test-agent-utils/decoder/src/test/java/datadog/trace/test/agent/decoder/DecoderTest.java b/utils/test-agent-utils/decoder/src/test/java/datadog/trace/test/agent/decoder/DecoderTest.java
index ddcd4d38f9c..4acea005e87 100644
--- a/utils/test-agent-utils/decoder/src/test/java/datadog/trace/test/agent/decoder/DecoderTest.java
+++ b/utils/test-agent-utils/decoder/src/test/java/datadog/trace/test/agent/decoder/DecoderTest.java
@@ -4,6 +4,7 @@
 import static java.util.Collections.singletonMap;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertIterableEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.File;
@@ -24,6 +25,7 @@ public void decodeV05() throws Throwable {
     DecodedMessage message = Decoder.decodeV05(buffer);
     List<DecodedTrace> traces = message.getTraces();
     assertEquals(1, traces.size());
+    assertNull(traces.get(0).getSamplingPriority());
     List<DecodedSpan> spans = traces.get(0).getSpans();
     assertEquals(2, spans.size());
     List<DecodedSpan> sorted = Decoder.sortByStart(spans);
@@ -59,6 +61,7 @@ public void decodeV04() throws Throwable {
     DecodedMessage message = Decoder.decodeV04(buffer);
     List<DecodedTrace> traces = message.getTraces();
     assertEquals(1, traces.size());
+    assertNull(traces.get(0).getSamplingPriority());
     List<DecodedSpan> spans = traces.get(0).getSpans();
     assertEquals(2, spans.size());
     List<DecodedSpan> sorted = Decoder.sortByStart(spans);
@@ -96,6 +99,7 @@ public void decodeV1() throws Throwable {
     DecodedMessage message = Decoder.decodeV1(buffer);
     List<DecodedTrace> traces = message.getTraces();
     assertEquals(1, traces.size());
+    assertEquals(1, traces.get(0).getSamplingPriority());
     List<DecodedSpan> spans = traces.get(0).getSpans();
     assertEquals(2, spans.size());
     List<DecodedSpan> sorted = Decoder.sortByStart(spans);