diff --git a/flake.lock b/flake.lock
index 70fbf38..6ea6c84 100644
--- a/flake.lock
+++ b/flake.lock
@@ -11,15 +11,16 @@
         "src-pythonparser": "src-pythonparser"
       },
       "locked": {
-        "lastModified": 1654087576,
-        "narHash": "sha256-d+LCvCXikhhEjsf4qBZakx3Sda85p+4vVZVwE1YuS90=",
-        "ref": "master",
-        "rev": "68ef0073ea66fe9c7f7c178979ecb8c681c47caa",
-        "revCount": 8068,
+        "lastModified": 1657275623,
+        "narHash": "sha256-FtVLsJtUsK7Yul2Ma4x8qzFsbqPla/w+IBaotcK/jDI=",
+        "ref": "release-7",
+        "rev": "59dfb9e902183bd76cb39ff550495e5fdd17c65d",
+        "revCount": 8111,
         "type": "git",
         "url": "https://github.com/m-labs/artiq.git"
       },
       "original": {
+        "ref": "release-7",
         "type": "git",
         "url": "https://github.com/m-labs/artiq.git"
       }
@@ -52,11 +53,11 @@
     "mozilla-overlay": {
       "flake": false,
       "locked": {
-        "lastModified": 1650459918,
-        "narHash": "sha256-sroCK+QJTmoXtcRkwZyKOP9iAYOPID2Bwdxn4GkG16w=",
+        "lastModified": 1657214286,
+        "narHash": "sha256-rO/4oymKXU09wG2bcTt4uthPCp1XsBZjxuCJo3yVXNs=",
         "owner": "mozilla",
         "repo": "nixpkgs-mozilla",
-        "rev": "e1f7540fc0a8b989fb8cf701dc4fd7fc76bcf168",
+        "rev": "0508a66e28a5792fdfb126bbf4dec1029c2509e0",
         "type": "github"
       },
       "original": {
@@ -67,11 +68,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1653920503,
-        "narHash": "sha256-BBeCZwZImtjP3oYy4WogkQYy5OxNyfNciVSc1AfZgLQ=",
+        "lastModified": 1657123678,
+        "narHash": "sha256-cowVkScfUPlbBXUp08MeVk/wgm9E1zp1uC+9no2hZYw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a634c8f6c1fbf9b9730e01764999666f3436f10a",
+        "rev": "316b762afdb9e142a803f29c49a88b4a47db80ee",
         "type": "github"
       },
       "original": {
@@ -94,11 +95,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1654006751,
-        "narHash": "sha256-OWAnoTCutvTQcYdtdtLQuL6uRtG+7Jz7sbRhcScv8bo=",
+        "lastModified": 1654830914,
+        "narHash": "sha256-tratXcWu6Dgzd0Qd9V6EMjuNlE9qDN1pKFhP+Gt0b64=",
         "owner": "m-labs",
         "repo": "sipyco",
-        "rev": "b3d03a94c751a24769c54a61a0dbe9d6af52dade",
+        "rev": "58b0935f7ae47659abee5b5792fa594153328d6f",
         "type": "github"
       },
       "original": {
@@ -110,11 +111,11 @@
     "src-migen": {
       "flake": false,
       "locked": {
-        "lastModified": 1650337393,
-        "narHash": "sha256-rm1SlFmF2ASz0vIy2nDEzGlyRw2oYNeJRr8Kh8Mg2Qc=",
+        "lastModified": 1656649178,
+        "narHash": "sha256-A91sZRrprEuPOtIUVxm6wX5djac9wnNZQ4+cU1nvJPc=",
         "owner": "m-labs",
         "repo": "migen",
-        "rev": "d4e3f34177c32f09904397179e6ed9c83175e528",
+        "rev": "0fb91737090fe45fd764ea3f71257a4c53c7a4ae",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 9da14b4..68ea05f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   description = "Additional packages for ARTIQ";
 
-  inputs.artiq.url = git+https://github.com/m-labs/artiq.git;
+  inputs.artiq.url = git+https://github.com/m-labs/artiq.git?ref=release-7;
 
   outputs = { self, artiq }:
     let