diff --git a/build.xml b/build.xml
index 65c6801ed6..f3a6c070b8 100644
--- a/build.xml
+++ b/build.xml
@@ -335,7 +335,7 @@ under the License.
 
     <!-- jars in the ooxml-test-lib directory, see the fetch-ooxml-jars target-->
     <dependency prefix="ooxml.test.reflections" artifact="org.reflections:reflections:0.10.2" usage="ooxml-tests"/>
-    <dependency prefix="ooxml.test.guava" artifact="com.google.guava:guava:31.0.1-jre" usage="ooxml-tests"/>
+    <dependency prefix="ooxml.test.guava" artifact="com.google.guava:guava:31.1-jre" usage="ooxml-tests"/>
     <dependency prefix="ooxml.test.javassist" artifact="org.javassist:javassist:3.27.0-GA" usage="ooxml-tests"/>
     <dependency prefix="ooxml.test.slf4j-api" artifact="org.slf4j:slf4j-api:1.7.36" usage="ooxml-tests"/>
     <dependency prefix="ooxml.test.opczip" artifact="com.github.rzymek:opczip:1.2.0" usage="ooxml-tests"/>
diff --git a/poi-excelant/build.gradle b/poi-excelant/build.gradle
index ecd8ed5f07..12772db7c7 100644
--- a/poi-excelant/build.gradle
+++ b/poi-excelant/build.gradle
@@ -45,7 +45,7 @@ dependencies {
     testImplementation(project(path: ':poi-ooxml', configuration: 'tests')) {
         exclude group: 'org.apache.poi', module: 'poi-scratchpad'
     }
-    testImplementation 'com.google.guava:guava:31.0.1-jre'
+    testImplementation 'com.google.guava:guava:31.1-jre'
     testImplementation "org.apache.logging.log4j:log4j-slf4j18-impl:${log4jVersion}"
     testImplementation 'org.slf4j:slf4j-simple:1.7.36'
     testRuntimeOnly "org.apiguardian:apiguardian-api:${apiGuardianVersion}"
diff --git a/poi-integration/build.gradle b/poi-integration/build.gradle
index 14e7a40ba9..781f1132b8 100644
--- a/poi-integration/build.gradle
+++ b/poi-integration/build.gradle
@@ -43,7 +43,7 @@ sourceSets {
 dependencies {
     testImplementation 'org.apache.ant:ant:1.10.12'
     testImplementation 'org.apache.commons:commons-collections4:4.4'
-    testImplementation 'com.google.guava:guava:31.0.1-jre'
+    testImplementation 'com.google.guava:guava:31.1-jre'
 
     misc(project(':poi-ooxml')) {
         capabilities {
diff --git a/poi-ooxml/build.gradle b/poi-ooxml/build.gradle
index b9097c0abf..30614d0d88 100644
--- a/poi-ooxml/build.gradle
+++ b/poi-ooxml/build.gradle
@@ -138,7 +138,7 @@ dependencies {
     testImplementation 'org.reflections:reflections:0.10.2'
     testImplementation 'org.openjdk.jmh:jmh-core:1.34'
     testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.34'
-    testImplementation 'com.google.guava:guava:31.0.1-jre'
+    testImplementation 'com.google.guava:guava:31.1-jre'
     testImplementation 'org.tukaani:xz:1.9'
     testImplementation 'com.github.rzymek:opczip:1.2.0'