diff --git a/modules/bitcoind.nix b/modules/bitcoind.nix
index 6f2dc1c..14d972b 100644
--- a/modules/bitcoind.nix
+++ b/modules/bitcoind.nix
@@ -80,7 +80,7 @@ in {
       };
       rpc = {
         port = mkOption {
-          type = types.ints.u16;
+          type = types.port;
           default = 8332;
           description = "Port on which to listen for JSON-RPC connections.";
         };
@@ -133,7 +133,7 @@ in {
         description = "Whether to use the test chain.";
       };
       port = mkOption {
-        type = types.nullOr types.ints.u16;
+        type = types.nullOr types.port;
         default = null;
         description = "Override the default port on which to listen for connections.";
       };
diff --git a/modules/electrs.nix b/modules/electrs.nix
index 4c2b95f..bf81cd7 100644
--- a/modules/electrs.nix
+++ b/modules/electrs.nix
@@ -40,7 +40,7 @@ in {
       description = "RPC listening address.";
     };
     port = mkOption {
-      type = types.ints.u16;
+      type = types.port;
       default = 50001;
       description = "RPC port.";
     };
@@ -52,7 +52,7 @@ in {
     TLSProxy = {
       enable = mkEnableOption "Nginx TLS proxy";
       port = mkOption {
-        type = types.ints.u16;
+        type = types.port;
         default = 50003;
         description = "Port on which to listen for TLS client connections.";
       };
diff --git a/modules/liquid.nix b/modules/liquid.nix
index d943eb2..1e58cbb 100644
--- a/modules/liquid.nix
+++ b/modules/liquid.nix
@@ -94,7 +94,7 @@ in {
 
       rpc = {
         port = mkOption {
-          type = types.nullOr types.ints.u16;
+          type = types.nullOr types.port;
           default = null;
           description = "Override the default port on which to listen for JSON-RPC connections.";
         };
@@ -128,7 +128,7 @@ in {
         description = "Whether to use the test chain.";
       };
       port = mkOption {
-        type = types.nullOr types.ints.u16;
+        type = types.nullOr types.port;
         default = null;
         description = "Override the default port on which to listen for connections.";
       };
diff --git a/modules/lnd.nix b/modules/lnd.nix
index a66d9a8..5d74494 100644
--- a/modules/lnd.nix
+++ b/modules/lnd.nix
@@ -45,7 +45,7 @@ in {
       description = "The data directory for LND.";
     };
     rpcPort = mkOption {
-      type = types.ints.u16;
+      type = types.port;
       default = 10009;
       description = "Port on which to listen for gRPC connections.";
     };
diff --git a/modules/nanopos.nix b/modules/nanopos.nix
index 6cc1529..2f30446 100644
--- a/modules/nanopos.nix
+++ b/modules/nanopos.nix
@@ -36,7 +36,7 @@ in {
       '';
     };
     port = mkOption {
-      type = types.ints.u16;
+      type = types.port;
       default = 9116;
       description = ''
         "The port on which to listen for connections.";
diff --git a/modules/presets/secure-node.nix b/modules/presets/secure-node.nix
index 7e1704f..f2a35a7 100644
--- a/modules/presets/secure-node.nix
+++ b/modules/presets/secure-node.nix
@@ -20,12 +20,12 @@ in {
 
   options = {
     services.clightning.onionport = mkOption {
-      type = types.ints.u16;
+      type = types.port;
       default = 9735;
       description = "Port on which to listen for tor client connections.";
     };
     services.electrs.onionport = mkOption {
-      type = types.ints.u16;
+      type = types.port;
       default = 50002;
       description = "Port on which to listen for tor client connections.";
     };