diff --git a/exercises/series/build.gradle b/exercises/series/build.gradle
index 5a25a2896..d019b23c7 100644
--- a/exercises/series/build.gradle
+++ b/exercises/series/build.gradle
@@ -8,7 +8,6 @@ repositories {
 
 dependencies {
   testCompile "junit:junit:4.12"
-  testCompile "org.assertj:assertj-core:3.2.0"
 }
 test {
   testLogging {