diff --git a/build.gradle b/build.gradle
index 3c526d5f..9683c234 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,11 +13,11 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.1'
+        classpath 'com.android.tools.build:gradle:3.3.2'
 
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
-        classpath 'com.dicedmelon.gradle:jacoco-android:0.1.3'
+        classpath 'com.dicedmelon.gradle:jacoco-android:0.1.4'
 
         classpath 'org.codehaus.groovy:groovy-all:2.4.15'
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 86a9c7f8..18a9d4c0 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip
diff --git a/libaums/build.gradle b/libaums/build.gradle
index ee9f7eca..46570e4f 100644
--- a/libaums/build.gradle
+++ b/libaums/build.gradle
@@ -60,7 +60,7 @@ dependencies {
     testImplementation 'org.apache.commons:commons-io:1.3.2'
     testImplementation 'com.eclipsesource.minimal-json:minimal-json:0.9.4'
     testImplementation 'org.xenei:junit-contracts:0.1.7'
-    testImplementation 'org.mockito:mockito-core:2.7.22'
+    testImplementation 'org.mockito:mockito-core:2.24.5'
 
     api 'androidx.annotation:annotation:1.0.0-beta01'
     javadocDeps 'androidx.annotation:annotation:1.0.0-beta01'
diff --git a/libaums/src/main/java/com/github/mjdev/libaums/driver/file/FileBlockDeviceDriver.java b/libaums/src/main/java/com/github/mjdev/libaums/driver/file/FileBlockDeviceDriver.java
index 117e9a9d..fd50e34d 100644
--- a/libaums/src/main/java/com/github/mjdev/libaums/driver/file/FileBlockDeviceDriver.java
+++ b/libaums/src/main/java/com/github/mjdev/libaums/driver/file/FileBlockDeviceDriver.java
@@ -38,7 +38,8 @@ public FileBlockDeviceDriver(File file) throws FileNotFoundException {
     public FileBlockDeviceDriver(URL url, int blockSize, int byteOffset) throws IOException {
         this.byteOffset = byteOffset;
         ReadableByteChannel rbc = Channels.newChannel(url.openStream());
-        File tempFile = File.createTempFile("blockdevice", "bin");
+        File tempFile = File.createTempFile("libaums_test_blockdevice", "bin");
+        tempFile.deleteOnExit();
         FileOutputStream fos = new FileOutputStream(tempFile);
         fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);