diff --git a/cli/pom.xml b/cli/pom.xml
index 88ec27b1..9269bd03 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -24,7 +24,7 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.26</version>
+      <version>1.7.28</version>
     </dependency>
 
     <dependency>
diff --git a/http_server/pom.xml b/http_server/pom.xml
index 3c348c4c..5188e253 100644
--- a/http_server/pom.xml
+++ b/http_server/pom.xml
@@ -24,7 +24,7 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.26</version>
+      <version>1.7.28</version>
     </dependency>
 
     <dependency>