diff --git a/unicorn_approvals/ApprovalsService/pom.xml b/unicorn_approvals/ApprovalsService/pom.xml
index b5eb6aa..0783372 100644
--- a/unicorn_approvals/ApprovalsService/pom.xml
+++ b/unicorn_approvals/ApprovalsService/pom.xml
@@ -114,7 +114,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.25.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
diff --git a/unicorn_contracts/ContractsService/pom.xml b/unicorn_contracts/ContractsService/pom.xml
index a990f0a..0f3579a 100644
--- a/unicorn_contracts/ContractsService/pom.xml
+++ b/unicorn_contracts/ContractsService/pom.xml
@@ -77,7 +77,7 @@
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-core</artifactId>
-      <version>2.25.1</version>
+      <version>2.25.3</version>
     </dependency>
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
diff --git a/unicorn_web/PublicationManagerService/pom.xml b/unicorn_web/PublicationManagerService/pom.xml
index f88fb7d..6237f6c 100644
--- a/unicorn_web/PublicationManagerService/pom.xml
+++ b/unicorn_web/PublicationManagerService/pom.xml
@@ -158,7 +158,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.25.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>common</groupId>
diff --git a/unicorn_web/SearchService/pom.xml b/unicorn_web/SearchService/pom.xml
index 21b09f0..9d0ebdd 100644
--- a/unicorn_web/SearchService/pom.xml
+++ b/unicorn_web/SearchService/pom.xml
@@ -159,7 +159,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.25.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>common</groupId>