diff --git a/pkgs/applications/misc/waybar/default.nix b/pkgs/applications/misc/waybar/default.nix
index cdd78866cdcb..4857a7458e21 100644
--- a/pkgs/applications/misc/waybar/default.nix
+++ b/pkgs/applications/misc/waybar/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, meson, pkgconfig, ninja
-, wayland, wlroots, gtkmm3, libinput, libsigcxx, jsoncpp, fmt
+, wayland, wlroots, gtkmm3, libinput, libsigcxx, jsoncpp, fmt, spdlog
 , traySupport  ? true,  libdbusmenu-gtk3
 , pulseSupport ? false, libpulseaudio
 , nlSupport    ? true,  libnl
@@ -9,13 +9,13 @@
 }:
   stdenv.mkDerivation rec {
     name = "waybar-${version}";
-    version = "0.6.5";
+    version = "0.6.6";
 
     src = fetchFromGitHub {
       owner = "Alexays";
       repo = "Waybar";
       rev = version;
-      sha256 = "1k3ynx5ssq7ji0nlx0n7zrgrshxv5abj8fa8c5lcyxr2wxffna9z";
+      sha256 = "0wxd03lkgssz0vsib9qc040vfg1i6nrg7ac2c6qwficx62j2zlm1";
     };
 
     nativeBuildInputs = [
@@ -23,7 +23,7 @@
     ];
 
     buildInputs = with stdenv.lib;
-      [ wayland wlroots gtkmm3 libinput libsigcxx jsoncpp fmt ]
+      [ wayland wlroots gtkmm3 libinput libsigcxx jsoncpp fmt spdlog ]
       ++ optional  traySupport  libdbusmenu-gtk3
       ++ optional  pulseSupport libpulseaudio
       ++ optional  nlSupport    libnl