diff --git a/build.gradle b/build.gradle
index f96b5745..632c2110 100644
--- a/build.gradle
+++ b/build.gradle
@@ -86,8 +86,6 @@ dependencies {
     compile "com.fasterxml.jackson.core:jackson-core:$jacksonVersion"
     compile "com.fasterxml.jackson.core:jackson-annotations:$jacksonVersion"
     compile "com.fasterxml.jackson.core:jackson-databind:$jacksonVersion"
-    compile "org.slf4j:slf4j-api:$slf4jVersion"
-    compile "org.slf4j:jcl-over-slf4j:$slf4jVersion"
 
     // Testing
     testCompile("org.springframework:spring-test:$springVersion") {
@@ -100,7 +98,7 @@ dependencies {
 
     testCompile "javax.annotation:jsr250-api:1.0", optional
 	testRuntime "log4j:log4j:$log4jVersion"
-	testCompile "org.apache.derby:derbyLocale_zh_TW:10.9.1.0"
+	testRuntime "org.apache.derby:derbyLocale_zh_TW:10.9.1.0"
 	testRuntime "org.slf4j:slf4j-log4j12:$slf4jVersion"
 
     sharedResources "org.springframework.data.build:spring-data-build-resources:$springDataBuildVersion@zip"