diff --git a/pkgs/by-name/ze/zenoh-backend-filesystem/package.nix b/pkgs/by-name/ze/zenoh-backend-filesystem/package.nix
index 674bffd814fe..f0118bb9af23 100644
--- a/pkgs/by-name/ze/zenoh-backend-filesystem/package.nix
+++ b/pkgs/by-name/ze/zenoh-backend-filesystem/package.nix
@@ -10,7 +10,7 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "zenoh-backend-filesystem";
-  version = "1.2.1";
+  version = "1.2.1"; # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
diff --git a/pkgs/by-name/ze/zenoh-backend-influxdb/package.nix b/pkgs/by-name/ze/zenoh-backend-influxdb/package.nix
index 1a385f2dcba7..edb7ab5a5a5b 100644
--- a/pkgs/by-name/ze/zenoh-backend-influxdb/package.nix
+++ b/pkgs/by-name/ze/zenoh-backend-influxdb/package.nix
@@ -6,7 +6,7 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "zenoh-backend-influxdb";
-  version = "1.2.1";
+  version = "1.2.1"; # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
diff --git a/pkgs/by-name/ze/zenoh-backend-rocksdb/package.nix b/pkgs/by-name/ze/zenoh-backend-rocksdb/package.nix
index 64ef7811a1a3..ebae909402f2 100644
--- a/pkgs/by-name/ze/zenoh-backend-rocksdb/package.nix
+++ b/pkgs/by-name/ze/zenoh-backend-rocksdb/package.nix
@@ -10,7 +10,7 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "zenoh-backend-rocksdb";
-  version = "1.2.1";
+  version = "1.2.1"; # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
diff --git a/pkgs/by-name/ze/zenoh-plugin-mqtt/package.nix b/pkgs/by-name/ze/zenoh-plugin-mqtt/package.nix
index 644b956da84e..2d0749368080 100644
--- a/pkgs/by-name/ze/zenoh-plugin-mqtt/package.nix
+++ b/pkgs/by-name/ze/zenoh-plugin-mqtt/package.nix
@@ -6,7 +6,7 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "zenoh-plugin-mqtt";
-  version = "1.2.1";
+  version = "1.2.1"; # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
diff --git a/pkgs/by-name/ze/zenoh-plugin-webserver/package.nix b/pkgs/by-name/ze/zenoh-plugin-webserver/package.nix
index a2a5ea6bff9d..1a04bf89d709 100644
--- a/pkgs/by-name/ze/zenoh-plugin-webserver/package.nix
+++ b/pkgs/by-name/ze/zenoh-plugin-webserver/package.nix
@@ -6,7 +6,7 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "zenoh-plugin-webserver";
-  version = "1.2.1";
+  version = "1.2.1"; # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
diff --git a/pkgs/by-name/ze/zenoh/package.nix b/pkgs/by-name/ze/zenoh/package.nix
index 722e2424d5b3..ac38986f3bdb 100644
--- a/pkgs/by-name/ze/zenoh/package.nix
+++ b/pkgs/by-name/ze/zenoh/package.nix
@@ -8,17 +8,17 @@
 }:
 rustPlatform.buildRustPackage rec {
   pname = "zenoh";
-  version = "1.2.0";
+  version = "1.2.1"; # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
     repo = "zenoh";
     rev = version;
-    hash = "sha256-X/jUANTwuOHIA+m8LB4UuJDJ0PwZuMQHtSdgSPiPYNI=";
+    hash = "sha256-iwimXL1jcBLwaek9tmvGuow56+LMCyA5qkvHsn72m+c=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-hCon4ydLLwvdglVfNn+eWMbDaTpcPZxzLWINPULYZwI=";
+  cargoHash = "sha256-UF5tZyAYluSZ+jR03W7h0azAGiNw48Hum1Si0G5lTqA=";
 
   cargoBuildFlags = [
     "--workspace"
diff --git a/pkgs/development/python-modules/zenoh/default.nix b/pkgs/development/python-modules/zenoh/default.nix
index 6566e08e0465..0bae4d17d929 100644
--- a/pkgs/development/python-modules/zenoh/default.nix
+++ b/pkgs/development/python-modules/zenoh/default.nix
@@ -11,19 +11,19 @@
 
 buildPythonPackage rec {
   pname = "zenoh";
-  version = "1.2.0";
+  version = "1.2.1"; # nixpkgs-update: no auto update
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "eclipse-zenoh";
     repo = "zenoh-python";
     rev = version;
-    hash = "sha256-N82KcLMYTOzkeFR6NLNR/g4MDjXk2aZRaAVMggXKwf0=";
+    hash = "sha256-AIsIjMcT9g0mTAgxOL/shBEjpeuOm/7Wn4EOSyYbShE=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit src pname version;
-    hash = "sha256-5JdqANf5roFY3J+iPxg+WhmAyTWARhgav+/jt7rttqg=";
+    hash = "sha256-Y8fg/vFL7kLoARpp0BmDpQva9zNEEOWOHQk3GjeAoLk=";
   };
 
   build-system = [