diff --git a/modules/transport-netty4/build.gradle b/modules/transport-netty4/build.gradle
index 222cbca07ae55..5d4bcd7c10a84 100644
--- a/modules/transport-netty4/build.gradle
+++ b/modules/transport-netty4/build.gradle
@@ -34,13 +34,13 @@ compileTestJava.options.compilerArgs << "-Xlint:-cast,-deprecation,-rawtypes,-tr
 
 dependencies {
     // network stack
-    compile "io.netty:netty-buffer:4.1.13.Final"
-    compile "io.netty:netty-codec:4.1.13.Final"
-    compile "io.netty:netty-codec-http:4.1.13.Final"
-    compile "io.netty:netty-common:4.1.13.Final"
-    compile "io.netty:netty-handler:4.1.13.Final"
-    compile "io.netty:netty-resolver:4.1.13.Final"
-    compile "io.netty:netty-transport:4.1.13.Final"
+    compile "io.netty:netty-buffer:4.1.16.Final"
+    compile "io.netty:netty-codec:4.1.16.Final"
+    compile "io.netty:netty-codec-http:4.1.16.Final"
+    compile "io.netty:netty-common:4.1.16.Final"
+    compile "io.netty:netty-handler:4.1.16.Final"
+    compile "io.netty:netty-resolver:4.1.16.Final"
+    compile "io.netty:netty-transport:4.1.16.Final"
 }
 
 dependencyLicenses {
@@ -149,18 +149,18 @@ thirdPartyAudit.excludes = [
         'io.netty.util.internal.PlatformDependent0$3',
         'io.netty.util.internal.shaded.org.jctools.queues.BaseLinkedQueueConsumerNodeRef',
         'io.netty.util.internal.shaded.org.jctools.queues.BaseLinkedQueueProducerNodeRef',
-        'io.netty.util.internal.shaded.org.jctools.queues.BaseMpscLinkedArrayQueue',
-        'io.netty.util.internal.shaded.org.jctools.queues.ConcurrentSequencedCircularArrayQueue',
+        'io.netty.util.internal.shaded.org.jctools.queues.BaseMpscLinkedArrayQueueColdProducerFields',
+        'io.netty.util.internal.shaded.org.jctools.queues.BaseMpscLinkedArrayQueueConsumerFields',
+        'io.netty.util.internal.shaded.org.jctools.queues.BaseMpscLinkedArrayQueueProducerFields',
         'io.netty.util.internal.shaded.org.jctools.queues.LinkedQueueNode',
-        'io.netty.util.internal.shaded.org.jctools.queues.MpmcArrayQueueConsumerField',
-        'io.netty.util.internal.shaded.org.jctools.queues.MpmcArrayQueueProducerField',
-        'io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueueConsumerField',
-        'io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueueHeadLimitField',
-        'io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueueTailField',
-        'io.netty.util.internal.shaded.org.jctools.util.JvmInfo',
+        'io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueueConsumerIndexField',
+        'io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueueProducerIndexField',
+        'io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueueProducerLimitField',
         'io.netty.util.internal.shaded.org.jctools.util.UnsafeAccess',
         'io.netty.util.internal.shaded.org.jctools.util.UnsafeRefArrayAccess',
 
+        'org.conscrypt.AllocatedBuffer',
+        'org.conscrypt.BufferAllocator',
         'org.conscrypt.Conscrypt$Engines',
         'org.conscrypt.HandshakeListener'
 ]
diff --git a/modules/transport-netty4/licenses/netty-buffer-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-buffer-4.1.13.Final.jar.sha1
deleted file mode 100644
index 31f015e158af4..0000000000000
--- a/modules/transport-netty4/licenses/netty-buffer-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-0e3f583ea8a2618a7563b1ee2aa696c23edcc3d8
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-buffer-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-buffer-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..c546222971985
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-buffer-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+63b5fa95c74785e16f2c30ce268bc222e35c8cb5
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-4.1.13.Final.jar.sha1
deleted file mode 100644
index 6e7f1bdc14ced..0000000000000
--- a/modules/transport-netty4/licenses/netty-codec-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-370eeb6e9d92495a2a3be096ab6102755af76730
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..1e6c241ea0b17
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-codec-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+d84a1f21768b7309c2954521cf5a1f46c2309eb1
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-http-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-http-4.1.13.Final.jar.sha1
deleted file mode 100644
index 80d18918e1d3f..0000000000000
--- a/modules/transport-netty4/licenses/netty-codec-http-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-0ee87368766e6b900cf6be8ac9cdce27156e9411
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-http-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-http-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..71c33af1c5fc2
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-codec-http-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+d64312378b438dfdad84267c599a053327c6f02a
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-common-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-common-4.1.13.Final.jar.sha1
deleted file mode 100644
index 044ec3ef4ed2c..0000000000000
--- a/modules/transport-netty4/licenses/netty-common-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-f640e8cd8866527150784f8986152d3bba45b712
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-common-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-common-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..3edf5fcea59b3
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-common-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+177a6b30cca92f6f5f9873c9befd681377a4c328
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-handler-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-handler-4.1.13.Final.jar.sha1
deleted file mode 100644
index 862f16a32a3ec..0000000000000
--- a/modules/transport-netty4/licenses/netty-handler-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-85847aa81a98d29948731befb4784d141046fa0e
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-handler-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-handler-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..cba27387268d1
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-handler-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+fec0e63e7dd7f4eeef7ea8dc47a1ff32dfc7ebc2
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-resolver-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-resolver-4.1.13.Final.jar.sha1
deleted file mode 100644
index 7857ddac89cb9..0000000000000
--- a/modules/transport-netty4/licenses/netty-resolver-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-d33ce420bd22c8a53246296ceb6e1ff08d31f8e1
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-resolver-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-resolver-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..3571d2ecfdc48
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-resolver-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+f6eb553b53fb3a90a8ac1170697093fed82eae28
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-transport-4.1.13.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-transport-4.1.13.Final.jar.sha1
deleted file mode 100644
index dc86ce66f4357..0000000000000
--- a/modules/transport-netty4/licenses/netty-transport-4.1.13.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-5008406221a849a350ad2a8885f14ac330e038f3
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-transport-4.1.16.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-transport-4.1.16.Final.jar.sha1
new file mode 100644
index 0000000000000..e502d4c77084c
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-transport-4.1.16.Final.jar.sha1
@@ -0,0 +1 @@
+3c8ee2c4d4a1cbb947a5c184c7aeb2204260958b
\ No newline at end of file