diff --git a/pom.xml b/pom.xml
index 369348d..b2fd4cc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -77,6 +77,16 @@
 
 	</build>
 
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>com.google.guava</groupId>
+				<artifactId>guava</artifactId>
+				<version>28.2-jre</version>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
 	<dependencies>
 
 		<dependency>
@@ -111,7 +121,7 @@
 		<dependency>
 			<groupId>org.bitcoinj</groupId>
 			<artifactId>bitcoinj-core</artifactId>
-			<version>0.15.2</version>
+			<version>0.15.8</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>