diff --git a/hetu-mongodb/pom.xml b/hetu-mongodb/pom.xml
index 868a1743a..9c230dbca 100644
--- a/hetu-mongodb/pom.xml
+++ b/hetu-mongodb/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <air.main.basedir>${project.parent.basedir}</air.main.basedir>
         <mongo-java.version>3.6.0</mongo-java.version>
-        <netty.version>4.0.32.Final</netty.version>
+        <netty.version>4.1.72.Final</netty.version>
     </properties>
 
     <dependencies>
diff --git a/pom.xml b/pom.xml
index 4793b5331..3c196e7f3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,7 +49,7 @@
         <dep.tempto.version>165</dep.tempto.version>
         <dep.testng.version>6.10</dep.testng.version>
         <dep.assertj-core.version>3.8.0</dep.assertj-core.version>
-        <dep.logback.version>1.2.3</dep.logback.version>
+        <dep.logback.version>1.2.9</dep.logback.version>
         <dep.jmxutils.version>1.21</dep.jmxutils.version>
         <dep.junit.version>4.13.1</dep.junit.version>
         <dep.gcs.version>1.9.10</dep.gcs.version>
@@ -1255,7 +1255,7 @@
             <dependency>
                 <groupId>org.xerial.snappy</groupId>
                 <artifactId>snappy-java</artifactId>
-                <version>1.1.2.6</version>
+                <version>1.1.8.4</version>
             </dependency>
 
             <dependency>
diff --git a/presto-elasticsearch/pom.xml b/presto-elasticsearch/pom.xml
index 824de6fc3..c747b976e 100644
--- a/presto-elasticsearch/pom.xml
+++ b/presto-elasticsearch/pom.xml
@@ -14,7 +14,7 @@
 
     <properties>
         <air.main.basedir>${project.parent.basedir}</air.main.basedir>
-        <dep.log4j.version>2.15.0</dep.log4j.version>
+        <dep.log4j.version>2.17.0</dep.log4j.version>
         <dep.elasticsearch.version>6.0.0</dep.elasticsearch.version>
         <httpcore-nio.version>4.4.5</httpcore-nio.version>
     </properties>
diff --git a/presto-product-tests/pom.xml b/presto-product-tests/pom.xml
index 1421f3814..69ec912ff 100644
--- a/presto-product-tests/pom.xml
+++ b/presto-product-tests/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.xerial.snappy</groupId>
             <artifactId>snappy-java</artifactId>
-            <version>1.1.2.6</version>
+            <version>1.1.8.4</version>
             <scope>runtime</scope>
         </dependency>
         <dependency>
diff --git a/presto-record-decoder/pom.xml b/presto-record-decoder/pom.xml
index 882170e0a..14604872b 100644
--- a/presto-record-decoder/pom.xml
+++ b/presto-record-decoder/pom.xml
@@ -76,7 +76,7 @@
         <dependency>
             <groupId>org.xerial.snappy</groupId>
             <artifactId>snappy-java</artifactId>
-            <version>1.1.1.7</version>
+            <version>1.1.8.4</version>
             <scope>runtime</scope>
         </dependency>