diff --git a/pkgs/applications/networking/mullvad-vpn/default.nix b/pkgs/applications/networking/mullvad-vpn/default.nix
index e03d6fa23f5a..fd08817f026d 100644
--- a/pkgs/applications/networking/mullvad-vpn/default.nix
+++ b/pkgs/applications/networking/mullvad-vpn/default.nix
@@ -33,6 +33,7 @@ let deps = [
     xorg.libXrender
     xorg.libXtst
     xorg.libxcb
+    xorg.libxshmfence
     nspr
     nss
     systemd
@@ -42,11 +43,11 @@ in
 
 stdenv.mkDerivation rec {
   pname = "mullvad-vpn";
-  version = "2021.5";
+  version = "2021.6";
 
   src = fetchurl {
     url = "https://github.com/mullvad/mullvadvpn-app/releases/download/${version}/MullvadVPN-${version}_amd64.deb";
-    sha256 = "186va4pllimmcqnlbry5ni8gi8p3mbpgjf7sdspmhy2hlfjvlz47";
+    sha256 = "0vpahryw4hm1k9p4vang84ji88znz67s7wxnwqndf02a627n7fcm";
   };
 
   nativeBuildInputs = [