diff --git a/build.gradle b/build.gradle
index 7d917c5..35e89e0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id "com.github.spotbugs" version "1.6.9"
+    id "com.github.spotbugs" version "1.7.0"
     id "org.sonarqube" version '2.6.1'
     id "io.codearte.nexus-staging" version "0.11.0"
 }
diff --git a/gradle/ext.gradle b/gradle/ext.gradle
deleted file mode 100644
index e69de29..0000000
diff --git a/gradle/sonarqube.gradle b/gradle/sonarqube.gradle
index f28846b..c1f41b2 100644
--- a/gradle/sonarqube.gradle
+++ b/gradle/sonarqube.gradle
@@ -1,6 +1,6 @@
 
 spotbugs {
-    toolVersion = '3.1.3'
+    toolVersion = '3.1.12'
     sourceSets = [sourceSets.main]
     ignoreFailures = true
     effort = "max"