diff --git a/pom.xml b/pom.xml
index f97305bfb..494f31122 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,7 +18,7 @@
     <easymock.version>4.3</easymock.version>
     <truth.version>1.1.3</truth.version>
     <logging.version>3.6.0</logging.version>
-    <slf4j.version>1.7.32</slf4j.version>
+    <slf4j.version>1.7.33</slf4j.version>
     <google.api-common.version>1.10.1</google.api-common.version>
   </properties>