diff --git a/nixos/modules/services/misc/plex.nix b/nixos/modules/services/misc/plex.nix
index e37b486375b..46221ace308 100644
--- a/nixos/modules/services/misc/plex.nix
+++ b/nixos/modules/services/misc/plex.nix
@@ -137,7 +137,7 @@ in
         User = cfg.user;
         Group = cfg.group;
         PermissionsStartOnly = "true";
-        ExecStart = "/bin/sh -c ${cfg.package}/usr/lib/plexmediaserver/Plex\\ Media\\ Server";
+        ExecStart = "\"${cfg.package}/usr/lib/plexmediaserver/Plex Media Server\"";
         KillSignal = "SIGQUIT";
         Restart = "on-failure";
       };
diff --git a/pkgs/servers/plex/default.nix b/pkgs/servers/plex/default.nix
index 31746689719..fa944f5fd26 100644
--- a/pkgs/servers/plex/default.nix
+++ b/pkgs/servers/plex/default.nix
@@ -6,9 +6,9 @@
 let
   plexPass = throw "Plex pass has been removed at upstream's request; please unset nixpkgs.config.plex.pass";
   plexpkg = if enablePlexPass then plexPass else {
-    version = "1.9.2.4285";
-    vsnHash = "9f65b88ae";
-    sha256 = "0rz53kb4r32s734jhb3n65dcmb0mylhb6wcqinp0dg8w39ncv571";
+    version = "1.9.5.4339";
+    vsnHash = "46276db8d";
+    sha256 = "09zc2wfpvan2j9h88x1f57lpfiqvml2m5m2azhphi4hb31sd3hch";
   };
 
 in stdenv.mkDerivation rec {