diff --git a/build.gradle b/build.gradle
index c76da6d5..fc523ccb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -238,7 +238,7 @@ checkstyleMain.enabled = false
 checkstyleTest.enabled = false
 
 dependencies {
-    def nettyVersion = "4.1.79.Final"
+    def nettyVersion = "${versions.netty}"
 
     configurations {
         // jarHell reports class name conflicts between securemock and mockito-core
diff --git a/licenses/netty-buffer-4.1.79.Final.jar.sha1 b/licenses/netty-buffer-4.1.79.Final.jar.sha1
deleted file mode 100644
index 8e9e4d0b..00000000
--- a/licenses/netty-buffer-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-6c014412b599489b1db27c6bc08d8a46da94e397
\ No newline at end of file
diff --git a/licenses/netty-buffer-4.1.86.Final.jar.sha1 b/licenses/netty-buffer-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..c477a0d3
--- /dev/null
+++ b/licenses/netty-buffer-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+a66fa0ed2687eb33a2e53a17a6df61bfe3b3f2bd
\ No newline at end of file
diff --git a/licenses/netty-codec-4.1.79.Final.jar.sha1 b/licenses/netty-codec-4.1.79.Final.jar.sha1
deleted file mode 100644
index c0920231..00000000
--- a/licenses/netty-codec-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-18f5b02af7ca611978bc28f2cb58cbb3b9b0f0ef
\ No newline at end of file
diff --git a/licenses/netty-codec-4.1.86.Final.jar.sha1 b/licenses/netty-codec-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..b2bd3058
--- /dev/null
+++ b/licenses/netty-codec-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+ee126da926ea202da3b21eb737788ef83b1db772
\ No newline at end of file
diff --git a/licenses/netty-codec-http-4.1.79.Final.jar.sha1 b/licenses/netty-codec-http-4.1.79.Final.jar.sha1
deleted file mode 100644
index a3f650da..00000000
--- a/licenses/netty-codec-http-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-882c70bc0a30a98bf3ce477f043e967ac026044c
\ No newline at end of file
diff --git a/licenses/netty-codec-http-4.1.86.Final.jar.sha1 b/licenses/netty-codec-http-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..60affc4a
--- /dev/null
+++ b/licenses/netty-codec-http-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+23674593f004959ae002ec348626eecf677191ae
\ No newline at end of file
diff --git a/licenses/netty-codec-http2-4.1.79.Final.jar.sha1 b/licenses/netty-codec-http2-4.1.79.Final.jar.sha1
deleted file mode 100644
index f2989024..00000000
--- a/licenses/netty-codec-http2-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-0eeffab0cd5efb699d5e4ab9b694d32fef6694b3
\ No newline at end of file
diff --git a/licenses/netty-codec-http2-4.1.86.Final.jar.sha1 b/licenses/netty-codec-http2-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..e0fb5c63
--- /dev/null
+++ b/licenses/netty-codec-http2-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+ac0ca067e4118533ad1038776fcd9d5f3058b7d4
\ No newline at end of file
diff --git a/licenses/netty-codec-socks-4.1.79.Final.jar.sha1 b/licenses/netty-codec-socks-4.1.79.Final.jar.sha1
deleted file mode 100644
index 913f0e76..00000000
--- a/licenses/netty-codec-socks-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-794a5937cdb1871c4ae350610752dec2929dc1d6
\ No newline at end of file
diff --git a/licenses/netty-codec-socks-4.1.86.Final.jar.sha1 b/licenses/netty-codec-socks-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..6544ba99
--- /dev/null
+++ b/licenses/netty-codec-socks-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+854264e7ad75887bc25b82eb38e4ee65c8b44dc3
\ No newline at end of file
diff --git a/licenses/netty-common-4.1.79.Final.jar.sha1 b/licenses/netty-common-4.1.79.Final.jar.sha1
deleted file mode 100644
index faa7b099..00000000
--- a/licenses/netty-common-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-2814bd465731355323aba0fdd22163bfce638a75
\ No newline at end of file
diff --git a/licenses/netty-common-4.1.86.Final.jar.sha1 b/licenses/netty-common-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..48c07b3c
--- /dev/null
+++ b/licenses/netty-common-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+1dceab4662a9cc93faf87b237bb41103b1bc7f0e
\ No newline at end of file
diff --git a/licenses/netty-handler-4.1.79.Final.jar.sha1 b/licenses/netty-handler-4.1.79.Final.jar.sha1
deleted file mode 100644
index 8e314f16..00000000
--- a/licenses/netty-handler-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-2dc22423c8ed19906615fb936a5fcb7db14a4e6c
\ No newline at end of file
diff --git a/licenses/netty-handler-4.1.86.Final.jar.sha1 b/licenses/netty-handler-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..7c036b19
--- /dev/null
+++ b/licenses/netty-handler-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+0bcb65230218286e6456b5d085cb42e67776eb70
\ No newline at end of file
diff --git a/licenses/netty-handler-proxy-4.1.79.Final.jar.sha1 b/licenses/netty-handler-proxy-4.1.79.Final.jar.sha1
deleted file mode 100644
index dbb072f3..00000000
--- a/licenses/netty-handler-proxy-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-054aace8683de7893cf28d4aab72cd60f49b5700
\ No newline at end of file
diff --git a/licenses/netty-handler-proxy-4.1.86.Final.jar.sha1 b/licenses/netty-handler-proxy-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..5f8a3056
--- /dev/null
+++ b/licenses/netty-handler-proxy-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+2515d76be9671cc248bab77352edddd16bfa9436
\ No newline at end of file
diff --git a/licenses/netty-resolver-4.1.79.Final.jar.sha1 b/licenses/netty-resolver-4.1.79.Final.jar.sha1
deleted file mode 100644
index af550935..00000000
--- a/licenses/netty-resolver-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-55ecb1ff4464b56564a90824a741c3911264aaa4
\ No newline at end of file
diff --git a/licenses/netty-resolver-4.1.86.Final.jar.sha1 b/licenses/netty-resolver-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..f5258c46
--- /dev/null
+++ b/licenses/netty-resolver-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+bad83d479f7bd8ea84eefd77c316435be4c97270
\ No newline at end of file
diff --git a/licenses/netty-transport-4.1.79.Final.jar.sha1 b/licenses/netty-transport-4.1.79.Final.jar.sha1
deleted file mode 100644
index c6e18efb..00000000
--- a/licenses/netty-transport-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-6cc2b49749b4fbcc39c687027e04e65e857552a9
\ No newline at end of file
diff --git a/licenses/netty-transport-4.1.86.Final.jar.sha1 b/licenses/netty-transport-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..1fa4ab02
--- /dev/null
+++ b/licenses/netty-transport-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+7c7739c41fd110c3576e9faace332ee957f27203
\ No newline at end of file
diff --git a/licenses/netty-transport-native-unix-common-4.1.79.Final.jar.sha1 b/licenses/netty-transport-native-unix-common-4.1.79.Final.jar.sha1
deleted file mode 100644
index 7f984663..00000000
--- a/licenses/netty-transport-native-unix-common-4.1.79.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-731937caec938b77b39df932a8da8aaca8d5ec05
\ No newline at end of file
diff --git a/licenses/netty-transport-native-unix-common-4.1.86.Final.jar.sha1 b/licenses/netty-transport-native-unix-common-4.1.86.Final.jar.sha1
new file mode 100644
index 00000000..3701a94d
--- /dev/null
+++ b/licenses/netty-transport-native-unix-common-4.1.86.Final.jar.sha1
@@ -0,0 +1 @@
+5e0e7fc1c337485cabcf7971faefe692b76f93a2
\ No newline at end of file