diff --git a/gigaword-indexer/pom.xml b/gigaword-indexer/pom.xml
index dfdfc23..2b448f1 100644
--- a/gigaword-indexer/pom.xml
+++ b/gigaword-indexer/pom.xml
@@ -156,7 +156,7 @@
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
-			<version>23.0</version>
+			<version>29.0-jre</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.lucene</groupId>
diff --git a/pom.xml b/pom.xml
index eabc7f1..7607eee 100644
--- a/pom.xml
+++ b/pom.xml
@@ -91,7 +91,7 @@
 			<dependency>
 				<groupId>com.google.guava</groupId>
 				<artifactId>guava</artifactId>
-				<version>27.0-jre</version>
+				<version>29.0-jre</version>
 			</dependency>
 			<dependency>
 				<groupId>org.apache.logging.log4j</groupId>