diff --git a/poi-excelant/build.gradle b/poi-excelant/build.gradle
index 304dd89746..ee538601b6 100644
--- a/poi-excelant/build.gradle
+++ b/poi-excelant/build.gradle
@@ -47,7 +47,7 @@ dependencies {
     }
     testImplementation 'com.google.guava:guava:31.0.1-jre'
     testImplementation "org.apache.logging.log4j:log4j-slf4j18-impl:${log4jVersion}"
-    testImplementation 'org.slf4j:slf4j-simple:1.7.32'
+    testImplementation 'org.slf4j:slf4j-simple:1.7.33'
     testRuntimeOnly "org.apiguardian:apiguardian-api:${apiGuardianVersion}"
 
     if (SAXON_TEST) {
diff --git a/poi-integration/build.gradle b/poi-integration/build.gradle
index b60aa4717e..0ce1d61e15 100644
--- a/poi-integration/build.gradle
+++ b/poi-integration/build.gradle
@@ -78,7 +78,7 @@ dependencies {
     }
     testImplementation project(path: ':poi-ooxml-lite-agent', configuration: 'archives')
     testImplementation "org.apache.logging.log4j:log4j-slf4j18-impl:${log4jVersion}"
-    testImplementation 'org.slf4j:slf4j-simple:1.7.32'
+    testImplementation 'org.slf4j:slf4j-simple:1.7.33'
     testRuntimeOnly "org.apiguardian:apiguardian-api:${apiGuardianVersion}"
 
     if (SAXON_TEST) {
diff --git a/poi-ooxml/build.gradle b/poi-ooxml/build.gradle
index 415874a4f8..be0b51868c 100644
--- a/poi-ooxml/build.gradle
+++ b/poi-ooxml/build.gradle
@@ -144,7 +144,7 @@ dependencies {
     // prevent slf4j warnings coming from xmlsec -> slf4j-api 1.7.x dependency
     // see https://logging.apache.org/log4j/2.x/log4j-slf4j-impl/
     testImplementation "org.apache.logging.log4j:log4j-slf4j18-impl:${log4jVersion}"
-    testImplementation 'org.slf4j:slf4j-simple:1.7.32'
+    testImplementation 'org.slf4j:slf4j-simple:1.7.33'
 
     if (SAXON_TEST) {
         testRuntimeOnly "net.sf.saxon:Saxon-HE:${saxonVersion}"