diff --git a/japicmp-maven-plugin/pom.xml b/japicmp-maven-plugin/pom.xml
index 999a1314..e62bc832 100644
--- a/japicmp-maven-plugin/pom.xml
+++ b/japicmp-maven-plugin/pom.xml
@@ -175,7 +175,7 @@
 								<artifactItem>
 									<groupId>com.google.guava</groupId>
 									<artifactId>guava</artifactId>
-									<version>19.0</version>
+									<version>23.0</version>
 									<overWrite>true</overWrite>
 									<outputDirectory>${project.build.directory}</outputDirectory>
 									<destFileName>guava-19.0.jar</destFileName>
@@ -183,7 +183,7 @@
 								<artifactItem>
 									<groupId>com.google.guava</groupId>
 									<artifactId>guava</artifactId>
-									<version>18.0</version>
+									<version>23.0</version>
 									<overWrite>true</overWrite>
 									<outputDirectory>${project.build.directory}</outputDirectory>
 									<destFileName>guava-18.0.jar</destFileName>
diff --git a/japicmp-testbase/japicmp-test-ant-task/pom.xml b/japicmp-testbase/japicmp-test-ant-task/pom.xml
index aa3ad98f..4e9806ae 100644
--- a/japicmp-testbase/japicmp-test-ant-task/pom.xml
+++ b/japicmp-testbase/japicmp-test-ant-task/pom.xml
@@ -52,7 +52,7 @@
 								<artifactItem>
 									<groupId>com.google.guava</groupId>
 									<artifactId>guava</artifactId>
-									<version>18.0</version>
+									<version>23.0</version>
 									<type>jar</type>
 									<overWrite>false</overWrite>
 									<outputDirectory>${project.build.directory}</outputDirectory>
@@ -61,7 +61,7 @@
 								<artifactItem>
 									<groupId>com.google.guava</groupId>
 									<artifactId>guava</artifactId>
-									<version>19.0</version>
+									<version>23.0</version>
 									<type>jar</type>
 									<overWrite>false</overWrite>
 									<outputDirectory>${project.build.directory}</outputDirectory>
diff --git a/japicmp-testbase/japicmp-test-maven-plugin/pom.xml b/japicmp-testbase/japicmp-test-maven-plugin/pom.xml
index 0de660fe..5b23fb3e 100644
--- a/japicmp-testbase/japicmp-test-maven-plugin/pom.xml
+++ b/japicmp-testbase/japicmp-test-maven-plugin/pom.xml
@@ -64,7 +64,7 @@
 								<artifactItem>
 									<groupId>com.google.guava</groupId>
 									<artifactId>guava</artifactId>
-									<version>18.0</version>
+									<version>23.0</version>
 									<overWrite>true</overWrite>
 									<outputDirectory>${project.build.directory}</outputDirectory>
 									<destFileName>guava-18.0.jar</destFileName>
@@ -338,7 +338,7 @@
 								<dependency>
 									<groupId>com.google.guava</groupId>
 									<artifactId>guava</artifactId>
-									<version>18.0</version>
+									<version>23.0</version>
 								</dependency>
 							</oldVersion>
 							<newVersion>
diff --git a/pom.xml b/pom.xml
index 085d546c..28246dfd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -151,7 +151,7 @@
 		<plugin-annotation.version>3.15.1</plugin-annotation.version>
 		<surefireVersion>3.5.4</surefireVersion>
 		<javassist.version>3.30.2-GA</javassist.version>
-		<guava.version>33.4.8-jre</guava.version>
+		<guava.version>23.0</guava.version>
 		<jaxb.version>2.3.2</jaxb.version>
 		<jsoup.version>1.21.2</jsoup.version>
 		<mockito.version>4.6.1</mockito.version>