diff --git a/build.gradle b/build.gradle
index ef3200bd..b718021a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -322,7 +322,7 @@ dependencies {
     implementation group: 'org.apache.commons', name: 'commons-text', version: '1.10.0'
     implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.12.0'
     implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.19.0'
-    implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.19.0'
+    implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.21.0'
     implementation group: 'org.mongodb', name: 'mongodb-driver-sync', version: '4.8.1'
     implementation group: 'com.github.mwiede', name: 'jsch', version: '0.2.6'
     implementation group: 'org.apache.calcite', name: 'calcite-core', version: '1.32.0'
@@ -353,7 +353,7 @@ dependencies {
     testFixturesImplementation group: 'com.google.guava', name: 'guava', version: '29.0-jre'
     testFixturesImplementation group: 'org.mongodb', name: 'mongodb-driver-sync', version: '4.8.1'
     testFixturesImplementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.17.2'
-    testFixturesImplementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.17.2'
+    testFixturesImplementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.21.0'
 }
 
 publishing {