diff --git a/build.gradle b/build.gradle
index 50a04549..4619a338 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,7 +12,7 @@ repositories {
 dependencies {
     compile 'com.squareup.okhttp3:okhttp:3.12.3'
     compile 'com.squareup.okhttp3:logging-interceptor:3.12.3'
-    compile 'com.google.guava:guava:28.0-android'
+    compile 'com.google.guava:guava:28.1-android'
     compile 'org.slf4j:slf4j-api:1.7.28'
     compile 'com.google.code.findbugs:jsr305:3.0.2'
     compile 'org.json:json:20090211' // provided by Android