diff --git a/flake.lock b/flake.lock
index f0cb882..8768e3b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,12 +1,15 @@
 {
   "nodes": {
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1676283394,
-        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
         "type": "github"
       },
       "original": {
@@ -17,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1677022426,
-        "narHash": "sha256-dCFSTknONT7Rz5AYHEXrh4kpgSZjqjuu/lXJhJTiS78=",
+        "lastModified": 1690716044,
+        "narHash": "sha256-5rhZK0YMQOK+FaOC72leFXUFuCBxKH5SRzUQqpePqQE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8260d35eb9212c4803a3c612a9f7e29c3434fde2",
+        "rev": "b1b263e5f7f899704c6b592f2096bc8f719dc181",
         "type": "github"
       },
       "original": {
@@ -35,6 +38,21 @@
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/jdk.nix b/jdk.nix
index d4d4126..d562eb7 100644
--- a/jdk.nix
+++ b/jdk.nix
@@ -1,8 +1,8 @@
-{ buildPlatform, hostPlatform, jdk11, which, zip, buildPackages }:
+{ buildPlatform, hostPlatform, jdk17, which, zip, buildPackages }:
 
 if buildPlatform == hostPlatform
-then jdk11
-else (jdk11.override {
+then jdk17
+else (jdk17.override {
     # libIDL does not compile in cross-compile scenarios.
     enableGnome2 = false;
 }).overrideAttrs (old: {
diff --git a/openhab-addons.sha256 b/openhab-addons.sha256
index e1a1662..e83526e 100644
--- a/openhab-addons.sha256
+++ b/openhab-addons.sha256
@@ -1 +1 @@
-730b96b8acf84f44ed9df46cd58f1bd2e6afd3b498abe62f796da074ca932594
\ No newline at end of file
+edb34f7ad477ccfc5f9b171958139b780d27354384463c4b8e2a9d6d895bb75c
\ No newline at end of file
diff --git a/openhab.sha256 b/openhab.sha256
index 5cbf250..26065df 100644
--- a/openhab.sha256
+++ b/openhab.sha256
@@ -1 +1 @@
-551451292ead9ca440b0d224d60d7f68629f9949dcec8874effa7991650e31df
\ No newline at end of file
+3e9f77cd84c7431db13ca34b74bb2fb986296f4e11ef917e5e1724b3fd498f60
\ No newline at end of file
diff --git a/version b/version
index a423d42..cc868b6 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-3.4.2
\ No newline at end of file
+4.0.1
\ No newline at end of file