diff --git a/buildSrc/version.properties b/buildSrc/version.properties
index 7b702c5bb87..ff5620dadd6 100644
--- a/buildSrc/version.properties
+++ b/buildSrc/version.properties
@@ -19,7 +19,7 @@ slf4j             = 1.6.2
 # when updating the JNA version, also update the version in buildSrc/build.gradle
 jna               = 5.5.0
 
-netty             = 4.1.72.Final
+netty             = 4.1.73.Final
 joda              = 2.10.12
 
 # when updating this version, you need to ensure compatibility with:
diff --git a/modules/transport-netty4/licenses/netty-buffer-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-buffer-4.1.72.Final.jar.sha1
deleted file mode 100644
index f1398e52d8c..00000000000
--- a/modules/transport-netty4/licenses/netty-buffer-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-f306eec3f79541f9b8af9c471a0d5b63b7996272
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-buffer-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-buffer-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..e5833785ebb
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-buffer-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+244a569c9aae973f6f485ac9801d79c1eca36daa
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-4.1.72.Final.jar.sha1
deleted file mode 100644
index f70b5c0909d..00000000000
--- a/modules/transport-netty4/licenses/netty-codec-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-613c4019d687db4e9a5532564e442f83c4474ed7
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..dcdc1e4e58a
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-codec-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+9496a30a349863a4c6fa10d5c36b4f3b495d3a31
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-http-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-http-4.1.72.Final.jar.sha1
deleted file mode 100644
index 8c7611afca8..00000000000
--- a/modules/transport-netty4/licenses/netty-codec-http-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-a8f062d67303a5e4b2bc2ad48fb4fd8c99108e45
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-codec-http-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-codec-http-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..374cfb98614
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-codec-http-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+1ceeac4429b9bd517dc05e376a144bbe6b6bd038
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-common-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-common-4.1.72.Final.jar.sha1
deleted file mode 100644
index bfdf4a5cf85..00000000000
--- a/modules/transport-netty4/licenses/netty-common-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-a55bac9c3af5f59828207b551a96ac19bbfc341e
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-common-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-common-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..e80a6e2569d
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-common-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+27731b58d741b6faa6a00fa3285e7a55cc47be01
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-handler-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-handler-4.1.72.Final.jar.sha1
deleted file mode 100644
index d6cc1771a29..00000000000
--- a/modules/transport-netty4/licenses/netty-handler-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-9feee089fee606c64be90c0332db9aef1f7d8e46
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-handler-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-handler-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..0e227997874
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-handler-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+1a2231c0074f88254865c3769a4b5842939ea04d
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-resolver-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-resolver-4.1.72.Final.jar.sha1
deleted file mode 100644
index d08a6f6e7e4..00000000000
--- a/modules/transport-netty4/licenses/netty-resolver-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-4ff458458ea32ed1156086820b624a815fcbf2c0
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-resolver-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-resolver-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..ba24531724f
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-resolver-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+bfe83710f0c1739019613e81a06101020ca65def
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-transport-4.1.72.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-transport-4.1.72.Final.jar.sha1
deleted file mode 100644
index 603f1453030..00000000000
--- a/modules/transport-netty4/licenses/netty-transport-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-99138b436a584879355aca8fe3c64b46227d5d79
\ No newline at end of file
diff --git a/modules/transport-netty4/licenses/netty-transport-4.1.73.Final.jar.sha1 b/modules/transport-netty4/licenses/netty-transport-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..6a8647497f2
--- /dev/null
+++ b/modules/transport-netty4/licenses/netty-transport-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+abb155ddff196ccedfe85b810d4b9375ef85fcfa
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-codec-dns-4.1.72.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-codec-dns-4.1.72.Final.jar.sha1
deleted file mode 100644
index c8db6b56116..00000000000
--- a/plugins/repository-azure/licenses/netty-codec-dns-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-43030c869832981a626458073e86070858747e06
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-codec-dns-4.1.73.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-codec-dns-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..320ae18c98b
--- /dev/null
+++ b/plugins/repository-azure/licenses/netty-codec-dns-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+46137a5b01a5202059324cf4300443e53f11a38d
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-codec-http2-4.1.72.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-codec-http2-4.1.72.Final.jar.sha1
deleted file mode 100644
index 710f2136045..00000000000
--- a/plugins/repository-azure/licenses/netty-codec-http2-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-4b269e666fbace27d2c1efa57703e99b09655822
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-codec-http2-4.1.73.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-codec-http2-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..d7f5a464bcc
--- /dev/null
+++ b/plugins/repository-azure/licenses/netty-codec-http2-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+0eb145bc31fd32a20fd2a3e8b30736d2e0248b0c
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-codec-socks-4.1.72.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-codec-socks-4.1.72.Final.jar.sha1
deleted file mode 100644
index 4f9cb69436c..00000000000
--- a/plugins/repository-azure/licenses/netty-codec-socks-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-d3bc427b6e2dc4bb6dc9d18d1cc47f8530970a8b
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-codec-socks-4.1.73.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-codec-socks-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..6ba41c576c9
--- /dev/null
+++ b/plugins/repository-azure/licenses/netty-codec-socks-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+cefa44d8f5dcaab21179d945f12b6c6d7325cce9
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-handler-proxy-4.1.72.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-handler-proxy-4.1.72.Final.jar.sha1
deleted file mode 100644
index 791abf7a660..00000000000
--- a/plugins/repository-azure/licenses/netty-handler-proxy-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-90de0fe610454d4296052ae36acb8a6a1d0333f1
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-handler-proxy-4.1.73.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-handler-proxy-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..f50c9abf023
--- /dev/null
+++ b/plugins/repository-azure/licenses/netty-handler-proxy-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+d1afa6876c3d3bdbdbe5127ddd495e6514d6e600
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-resolver-dns-4.1.72.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-resolver-dns-4.1.72.Final.jar.sha1
deleted file mode 100644
index a50ef9c68c2..00000000000
--- a/plugins/repository-azure/licenses/netty-resolver-dns-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-a2fc945c3688e2b7d6ddb2c25f33832349657fa0
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-resolver-dns-4.1.73.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-resolver-dns-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..817fa4cc0d8
--- /dev/null
+++ b/plugins/repository-azure/licenses/netty-resolver-dns-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+97cdf5fb97f8d961cfa3ffb05175009b90e5cfee
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-transport-native-unix-common-4.1.72.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-transport-native-unix-common-4.1.72.Final.jar.sha1
deleted file mode 100644
index 4530a75b612..00000000000
--- a/plugins/repository-azure/licenses/netty-transport-native-unix-common-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-cedc023ffdcb68543b22a1ebc7960a160589aa09
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/netty-transport-native-unix-common-4.1.73.Final.jar.sha1 b/plugins/repository-azure/licenses/netty-transport-native-unix-common-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..22b8f58bd51
--- /dev/null
+++ b/plugins/repository-azure/licenses/netty-transport-native-unix-common-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+4701063d36f390e02da6da85c13e32a0e78349d2
\ No newline at end of file
diff --git a/plugins/repository-hdfs/licenses/netty-all-4.1.72.Final.jar.sha1 b/plugins/repository-hdfs/licenses/netty-all-4.1.72.Final.jar.sha1
deleted file mode 100644
index dc2119726f6..00000000000
--- a/plugins/repository-hdfs/licenses/netty-all-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-86a69bf2f38d9f9f05c528e158f1532d3c6d625e
\ No newline at end of file
diff --git a/plugins/repository-hdfs/licenses/netty-all-4.1.73.Final.jar.sha1 b/plugins/repository-hdfs/licenses/netty-all-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..52d6f22e730
--- /dev/null
+++ b/plugins/repository-hdfs/licenses/netty-all-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+75c5a0ddb28adcc9e4991c75678d4a85dfe4a0b3
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-buffer-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-buffer-4.1.72.Final.jar.sha1
deleted file mode 100644
index f1398e52d8c..00000000000
--- a/plugins/transport-nio/licenses/netty-buffer-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-f306eec3f79541f9b8af9c471a0d5b63b7996272
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-buffer-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-buffer-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..e5833785ebb
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-buffer-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+244a569c9aae973f6f485ac9801d79c1eca36daa
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-codec-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-codec-4.1.72.Final.jar.sha1
deleted file mode 100644
index f70b5c0909d..00000000000
--- a/plugins/transport-nio/licenses/netty-codec-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-613c4019d687db4e9a5532564e442f83c4474ed7
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-codec-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-codec-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..dcdc1e4e58a
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-codec-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+9496a30a349863a4c6fa10d5c36b4f3b495d3a31
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-codec-http-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-codec-http-4.1.72.Final.jar.sha1
deleted file mode 100644
index 8c7611afca8..00000000000
--- a/plugins/transport-nio/licenses/netty-codec-http-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-a8f062d67303a5e4b2bc2ad48fb4fd8c99108e45
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-codec-http-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-codec-http-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..374cfb98614
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-codec-http-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+1ceeac4429b9bd517dc05e376a144bbe6b6bd038
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-common-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-common-4.1.72.Final.jar.sha1
deleted file mode 100644
index bfdf4a5cf85..00000000000
--- a/plugins/transport-nio/licenses/netty-common-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-a55bac9c3af5f59828207b551a96ac19bbfc341e
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-common-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-common-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..e80a6e2569d
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-common-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+27731b58d741b6faa6a00fa3285e7a55cc47be01
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-handler-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-handler-4.1.72.Final.jar.sha1
deleted file mode 100644
index d6cc1771a29..00000000000
--- a/plugins/transport-nio/licenses/netty-handler-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-9feee089fee606c64be90c0332db9aef1f7d8e46
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-handler-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-handler-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..0e227997874
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-handler-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+1a2231c0074f88254865c3769a4b5842939ea04d
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-resolver-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-resolver-4.1.72.Final.jar.sha1
deleted file mode 100644
index d08a6f6e7e4..00000000000
--- a/plugins/transport-nio/licenses/netty-resolver-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-4ff458458ea32ed1156086820b624a815fcbf2c0
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-resolver-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-resolver-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..ba24531724f
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-resolver-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+bfe83710f0c1739019613e81a06101020ca65def
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-transport-4.1.72.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-transport-4.1.72.Final.jar.sha1
deleted file mode 100644
index 603f1453030..00000000000
--- a/plugins/transport-nio/licenses/netty-transport-4.1.72.Final.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-99138b436a584879355aca8fe3c64b46227d5d79
\ No newline at end of file
diff --git a/plugins/transport-nio/licenses/netty-transport-4.1.73.Final.jar.sha1 b/plugins/transport-nio/licenses/netty-transport-4.1.73.Final.jar.sha1
new file mode 100644
index 00000000000..6a8647497f2
--- /dev/null
+++ b/plugins/transport-nio/licenses/netty-transport-4.1.73.Final.jar.sha1
@@ -0,0 +1 @@
+abb155ddff196ccedfe85b810d4b9375ef85fcfa
\ No newline at end of file