diff --git a/pkgs/by-name/un/unison-ucm/package.nix b/pkgs/by-name/un/unison-ucm/package.nix
index 25d0a8d75eb3..7067ec63756f 100644
--- a/pkgs/by-name/un/unison-ucm/package.nix
+++ b/pkgs/by-name/un/unison-ucm/package.nix
@@ -14,21 +14,21 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "unison-code-manager";
-  version = "0.5.39";
+  version = "0.5.40";
 
   src =
     {
       aarch64-darwin = fetchurl {
         url = "https://github.com/unisonweb/unison/releases/download/release/${finalAttrs.version}/ucm-macos-arm64.tar.gz";
-        hash = "sha256-0bMQ7z6fbfv8UV9Dqy+IYEAUXUC7FD9GnadtgzCi8GQ=";
+        hash = "sha256-KsypPKHyscOiPXy4ZeCZcUFGIV97lsnLREJp5KAGFcM=";
       };
       x86_64-darwin = fetchurl {
         url = "https://github.com/unisonweb/unison/releases/download/release/${finalAttrs.version}/ucm-macos-x64.tar.gz";
-        hash = "sha256-01h8yQrxOAbfrMT4UciDMRZSq/hfDzUUvNvVMIypRYg=";
+        hash = "sha256-TpD2W+j7F83E+YPQRNe1K7fnNfpJEwt25ldB+nqQw7I=";
       };
       x86_64-linux = fetchurl {
         url = "https://github.com/unisonweb/unison/releases/download/release/${finalAttrs.version}/ucm-linux-x64.tar.gz";
-        hash = "sha256-mwV7iGaCvTEQBGCzyyHpZke4su3R5bIKT7dO78IOMdY=";
+        hash = "sha256-o1Zx9Vmovl0b/QMVT9XGaRM6FphsIsZQZamYlJ6b6y0=";
       };
     }
     .${stdenv.hostPlatform.system} or (throw "Unsupported platform ${stdenv.hostPlatform.system}");