diff --git a/flake.lock b/flake.lock
index 26783161..1beb61a6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -69,11 +69,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1671722432,
-        "narHash": "sha256-ojcZUekIQeOZkHHzR81st7qxX99dB1Eaaq6PU5MNeKc=",
+        "lastModified": 1672525397,
+        "narHash": "sha256-WASDnyxHKWVrEe0dIzkpH+jzKlCKAk0husv0f/9pyxg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "652e92b8064949a11bc193b90b74cb727f2a1405",
+        "rev": "8ba56d7c0d7490680f2d51ba46a141eca7c46afa",
         "type": "github"
       },
       "original": {
@@ -84,11 +84,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1671883564,
-        "narHash": "sha256-C15oAtyupmLB3coZY7qzEHXjhtUx/+77olVdqVMruAg=",
+        "lastModified": 1672441588,
+        "narHash": "sha256-jx5kxOyeObnVD44HRebKYL3cjWrcKhhcDmEYm0/naDY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "dac57a4eccf1442e8bf4030df6fcbb55883cb682",
+        "rev": "6a0d2701705c3cf6f42c15aa92b7885f1f8a477f",
         "type": "github"
       },
       "original": {
@@ -99,11 +99,11 @@
     },
     "nixpkgs-stable_2": {
       "locked": {
-        "lastModified": 1671923641,
-        "narHash": "sha256-flPauiL5UrfRJD+1oAcEefpEIUqTqnyKScWe/UUU+lE=",
+        "lastModified": 1672500394,
+        "narHash": "sha256-yzwBzCoeRBoRzm7ySHhm72kBG0QjgFalLz2FY48iLI4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "939c05a176b8485971463c18c44f48e56a7801c9",
+        "rev": "feda52be1d59f13b9aa02f064b4f14784b9a06c8",
         "type": "github"
       },
       "original": {
@@ -132,11 +132,11 @@
         "nixpkgs-stable": "nixpkgs-stable_2"
       },
       "locked": {
-        "lastModified": 1671937829,
-        "narHash": "sha256-YtaNB+mLw0d67JFYNjRWM+/AL3JCXuD/DGlnTlyX1tY=",
+        "lastModified": 1672543202,
+        "narHash": "sha256-nlCUtcIZxaBqUBG1GyaXhZmfyG5WK4e6LqypP8llX9E=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "855b8d51fc3991bd817978f0f093aa6ae0fae738",
+        "rev": "b35586cc5abacd4eba9ead138b53e2a60920f781",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 3f93bae7..6901f9c2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -77,10 +77,6 @@
               # gocryptfs = cross.gocryptfs;
 
               # pinned packages:
-              # 2022/12/13: grpc does not build on aarch64-linux. https://github.com/NixOS/nixpkgs/issues/205887
-              grpc = stable.grpc;
-              # depends on grpc, so pinned.
-              duplicity = stable.duplicity;
             })
           ];
         }
diff --git a/modules/packages.nix b/modules/packages.nix
index 0731de20..254659eb 100644
--- a/modules/packages.nix
+++ b/modules/packages.nix
@@ -85,7 +85,7 @@ let
     # XXX by default fractal stores its state in ~/.local/share/<UUID>.
     # after logging in, manually change ~/.local/share/keyrings/... to point it to some predictable subdir.
     # then reboot (so that libsecret daemon re-loads the keyring...?)
-    { pkg = fractal-latest; private = [ ".local/share/fractal" ]; }
+    # { pkg = fractal-latest; private = [ ".local/share/fractal" ]; }
     # { pkg = fractal-next; private = [ ".local/share/fractal" ]; }
 
     gajim  # XMPP client