diff --git a/modules/clightning-plugins/clboss.nix b/modules/clightning-plugins/clboss.nix
index ebe1eac..1cd790a 100644
--- a/modules/clightning-plugins/clboss.nix
+++ b/modules/clightning-plugins/clboss.nix
@@ -12,6 +12,11 @@ let cfg = config.services.clightning.plugins.clboss; in
         See also: https://github.com/ZmnSCPxj/clboss#operating
       '';
     };
+    acknowledgeDeprecation = mkOption {
+      type = types.bool;
+      default = false;
+      internal = true;
+    };
     min-onchain = mkOption {
       type = types.ints.positive;
       default = 30000;
@@ -49,6 +54,22 @@ let cfg = config.services.clightning.plugins.clboss; in
   };
 
   config = mkIf cfg.enable {
+    assertions = [
+      {
+        assertion = cfg.acknowledgeDeprecation;
+        message = ''
+          `clboss` is no longer maintained and has been deprecated.
+
+          Warning: For compatibility with clighting 23.05, the nix-bitcoin `clboss` package
+          includes a third-party fix that has not been thoroughly tested:
+          https://github.com/ZmnSCPxj/clboss/pull/162
+
+          To ignore this warning and continue using `clboss`, add the following to your config:
+          services.clightning.plugins.clboss.acknowledgeDeprecation = true;
+        '';
+      }
+    ];
+
     services.clightning.extraConfig = ''
       plugin=${cfg.package}/bin/clboss
       clboss-min-onchain=${toString cfg.min-onchain}
@@ -56,6 +77,7 @@ let cfg = config.services.clightning.plugins.clboss; in
       clboss-max-channel=${toString cfg.max-channel}
       clboss-zerobasefee=${cfg.zerobasefee}
     '';
+
     systemd.services.clightning.path = [
       pkgs.dnsutils
     ] ++ optional config.services.clightning.tor.proxy (hiPrio config.nix-bitcoin.torify);
diff --git a/pkgs/clboss/default.nix b/pkgs/clboss/default.nix
index 960f394..c500b12 100644
--- a/pkgs/clboss/default.nix
+++ b/pkgs/clboss/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, pkgconfig, curl, libev, sqlite }:
+{ lib, stdenv, fetchurl, fetchpatch, pkgconfig, curl, libev, sqlite }:
 
 let
   curlWithGnuTLS = curl.override { gnutlsSupport = true; opensslSupport = false; };
@@ -12,6 +12,15 @@ stdenv.mkDerivation rec {
     hash = "sha256-LTDJrm9Mk4j7Z++tKJKawEurgF1TnYuIoj+APbDHll4=";
   };
 
+  patches = [
+    # https://github.com/ZmnSCPxj/clboss/pull/162, required for clighting 23.05
+    (fetchpatch {
+      name = "fix-json-rpc";
+      url = "https://github.com/ZmnSCPxj/clboss/commit/a4bb0192550803db3d07628a29284a76f7204365.patch";
+      sha256 = "sha256-1iBJlOnt7n2xXNDgzH3PAvLryZcpM4VWNaWcEegbapQ=";
+    })
+  ];
+
   nativeBuildInputs = [ pkgconfig libev curlWithGnuTLS sqlite ];
 
   enableParallelBuilding = true;
diff --git a/test/tests.nix b/test/tests.nix
index ba4fa4c..604c5b6 100644
--- a/test/tests.nix
+++ b/test/tests.nix
@@ -145,6 +145,7 @@ let
     (mkIf config.test.features.clightningPlugins {
       services.clightning.plugins = {
         clboss.enable = true;
+        clboss.acknowledgeDeprecation = true;
         feeadjuster.enable = true;
         helpme.enable = true;
         monitor.enable = true;