diff --git a/modules/apps/vehicle-history-app/src/test/java/com/lingniu/ingest/historyapp/MavenModuleProfileTest.java b/modules/apps/vehicle-history-app/src/test/java/com/lingniu/ingest/historyapp/MavenModuleProfileTest.java
index c966be02..3a9113ee 100644
--- a/modules/apps/vehicle-history-app/src/test/java/com/lingniu/ingest/historyapp/MavenModuleProfileTest.java
+++ b/modules/apps/vehicle-history-app/src/test/java/com/lingniu/ingest/historyapp/MavenModuleProfileTest.java
@@ -215,6 +215,22 @@ class MavenModuleProfileTest {
                 .isFalse();
     }
 
+    @Test
+    void observabilityBuildSurfaceUsesMicrometerWithoutUnusedOpenTelemetryBom() throws Exception {
+        Document pom = rootPom();
+
+        assertThat(hasProjectProperty(pom, "micrometer.version"))
+                .isTrue();
+        assertThat(hasDependency(pom, "io.micrometer", "micrometer-bom"))
+                .isTrue();
+        assertThat(hasProjectProperty(pom, "otel.version"))
+                .isFalse();
+        assertThat(hasDependency(pom, "io.opentelemetry", "opentelemetry-bom"))
+                .isFalse();
+        assertThat(productionJavaContains("io.opentelemetry"))
+                .isFalse();
+    }
+
     @Test
     void productionDocsDoNotAdvertiseMemorySessionStore() throws Exception {
         String runbook = Files.readString(repositoryRoot()
diff --git a/pom.xml b/pom.xml
index add0670b..2276674e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -146,7 +146,6 @@
         <caffeine.version>3.1.8</caffeine.version>
         <resilience4j.version>2.2.0</resilience4j.version>
         <micrometer.version>1.13.6</micrometer.version>
-        <otel.version>1.42.1</otel.version>
         <paho-mqtt.version>1.2.5</paho-mqtt.version>
         <taos-jdbcdriver.version>3.8.4</taos-jdbcdriver.version>
         <springdoc-openapi.version>2.8.17</springdoc-openapi.version>
@@ -202,13 +201,6 @@
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
-            <dependency>
-                <groupId>io.opentelemetry</groupId>
-                <artifactId>opentelemetry-bom</artifactId>
-                <version>${otel.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
             <dependency>
                 <groupId>org.junit</groupId>
                 <artifactId>junit-bom</artifactId>