diff --git a/pom.xml b/pom.xml
index c92c319c5..df298b7c4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -151,7 +151,7 @@
         <slf4j.version>2.0.19</slf4j.version>
         <logback.version>1.6.3</logback.version>
         <jetty.version>12.1.6</jetty.version>
-        <opentelemetry.version>1.65.0</opentelemetry.version>
+        <opentelemetry.version>1.66.0</opentelemetry.version>
         <!-- Shared google-cloud libs converged so the firebase (Firestore) and google-genai
              plugins can coexist on one classpath (see dependencyManagement note below). -->
         <protobuf.version>4.36.1</protobuf.version>