diff --git a/build.gradle b/build.gradle
index 1cf40f6de2..a7767e7a11 100644
--- a/build.gradle
+++ b/build.gradle
@@ -72,7 +72,7 @@ allprojects {
 
     /*======== Static Analysis ========*/
     spotbugs {
-        toolVersion = '4.8.6'
+        toolVersion = '4.9.1'
         // allow build to continue to other sub projects
         ignoreFailures = true
     }