diff --git a/build.gradle b/build.gradle
index 3286c04..aff5f50 100644
--- a/build.gradle
+++ b/build.gradle
@@ -48,7 +48,7 @@ dependencies {
 
     testImplementation 'org.jmockit:jmockit:1.38'
     // testImplementation "junit:junit:4.+"
-    testImplementation 'org.hamcrest:hamcrest-core:2.2'
+    testImplementation 'org.hamcrest:hamcrest-core:3.0'
     testImplementation 'org.testng:testng:6.14.2'
     testImplementation "org.embulk:embulk-core:$EMBULK_VERSION:tests"
     testImplementation "org.embulk:embulk-standards:$EMBULK_VERSION"