diff --git a/externals/packages/jlink/default.nix b/externals/packages/jlink/default.nix
index 3ddf30c..17b1609 100644
--- a/externals/packages/jlink/default.nix
+++ b/externals/packages/jlink/default.nix
@@ -32,6 +32,7 @@ stdenv.mkDerivation rec {
   dontConfigure = true;
   dontBuild = true;
   dontStrip = true;
+  preferLocalBuild = true;
 
   nativeBuildInputs = [ autoPatchelfHook ];
   buildInputs = [
diff --git a/externals/packages/jlink/version.json b/externals/packages/jlink/version.json
index a4ee79d..c1b7715 100644
--- a/externals/packages/jlink/version.json
+++ b/externals/packages/jlink/version.json
@@ -1 +1 @@
-{"x86_64-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V758b_x86_64.tgz", "version": "7.58b", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-kr1zCzvGx4pmhPeWEoXlouOMnZY69V59/cF8hakv7ps="}, "i686-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V758b_i686.tgz", "version": "7.58b", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-d8gVsn3hYU39m15Tu5VkqOnocPTXyuCKmvLZsRw6fNw="}, "armv7l-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V758b_arm.tgz", "version": "7.58b", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-ze5EEjboQuT4UVxw/rU3w4Pgsk5yHoLARURQxonl26w="}, "aarch64-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V758b_arm64.tgz", "version": "7.58b", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-NFzo2udZ2ZuHdwG4ZGftI139LZPIrdso5adiMG09uh0="}}
\ No newline at end of file
+{"x86_64-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V766g_x86_64.tgz", "version": "7.66g", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-WQQ/xv4pRbqXRhD5WRqtg37Qs5JGKEcyEKMWDO20Dd8="}, "i686-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V766g_i686.tgz", "version": "7.66g", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-DWeo7ppucDJjyT17F4pfpfUI87HJSpT9256j1o8fe5s="}, "armv7l-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V766g_arm.tgz", "version": "7.66g", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-96nGdoxVfiktywLD1St33+5PUukfQc2/v9QltCAbwGY="}, "aarch64-linux": {"url": "https://www.segger.com/downloads/jlink/JLink_Linux_V766g_arm64.tgz", "version": "7.66g", "curlOpts": "-d accept_license_agreement=accepted -d submit=Download+software", "hash": "sha256-n6vyqoBNjOAOwBGVZZFBov2F01V5c2rM2hLt0jS81w4="}}
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
index 6d33563..5411ea6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -23,11 +23,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1656241064,
-        "narHash": "sha256-+jWwBt515aFGukeX8WSafg9CM3Ju3FD0XrF+X4ph0mU=",
+        "lastModified": 1656933710,
+        "narHash": "sha256-SVG8EqY1OTJWBRY4hpct2ZR2Rk0L8hCFkug3m0ABoZE=",
         "owner": "nixos",
         "repo": "nixos-hardware",
-        "rev": "99e33a57149916ebede78ec13edd9ba310c10f2f",
+        "rev": "3bf48d3587d3f34f745a19ebc968b002ef5b5c5a",
         "type": "github"
       },
       "original": {
@@ -38,11 +38,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1656007306,
-        "narHash": "sha256-MsC44YZ6wuBwn5Bu8T+RVoQWlp2l5BR6hhmNoAAHIEw=",
+        "lastModified": 1657296039,
+        "narHash": "sha256-Ghh39+aS+pw5sTP/ZO8VIKE6sBhMadDaQZtf+3yu4Vc=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ccf8bdf72624521358be6bb7d9b524c4cbcf7aff",
+        "rev": "71d7a4c037dc4f3e98d5c4a81b941933cf5bf675",
         "type": "github"
       },
       "original": {
@@ -54,11 +54,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1656239181,
-        "narHash": "sha256-wW1xRFBn376yGloXZ4QzBE4hjipMawpV18Lshd9QSPw=",
+        "lastModified": 1657265485,
+        "narHash": "sha256-PUQ9C7mfi0/BnaAUX2R/PIkoNCb/Jtx9EpnhMBNrO/o=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "f2537a505d45c31fe5d9c27ea9829b6f4c4e6ac5",
+        "rev": "b39924fc7764c08ae3b51beef9a3518c414cdb7d",
         "type": "github"
       },
       "original": {
@@ -70,11 +70,11 @@
     },
     "private": {
       "locked": {
-        "lastModified": 1649027188,
-        "narHash": "sha256-OLQOOAmMTjpVbWnX8avypJolRycM5zusGL75ASH5QG0=",
+        "lastModified": 1656526244,
+        "narHash": "sha256-FLoNh/rvQhkwMSzKj0lzkX3l+TY3Zp5sJZpwaxsLY7E=",
         "ref": "unified",
-        "rev": "25a7854a94cda521cccb4bee99c5dbbc95236316",
-        "revCount": 29,
+        "rev": "214732b6071afb2a9a1c2510528ce4f35c1b299e",
+        "revCount": 30,
         "type": "git",
         "url": "ssh://git@github.com/artemist/nixos-config-private"
       },