diff --git a/pkgs/applications/misc/font-manager/default.nix b/pkgs/applications/misc/font-manager/default.nix
index 7eb698321c5..ee8766f766f 100644
--- a/pkgs/applications/misc/font-manager/default.nix
+++ b/pkgs/applications/misc/font-manager/default.nix
@@ -5,13 +5,13 @@
 
 stdenv.mkDerivation rec {
   pname = "font-manager";
-  version = "0.7.4.1";
+  version = "0.7.4.2";
 
   src = fetchFromGitHub {
     owner = "FontManager";
     repo = "master";
     rev = version;
-    sha256 = "1zy419zzc95h4gxvl88acqjbwlnmwybj23rx3vkc62j3v3w4nlay";
+    sha256 = "15814czap0qg2h9nkcn9fg4i4xxa1lgw1vi6h3hi242qfwc7fh3i";
   };
 
   nativeBuildInputs = [
@@ -49,6 +49,10 @@ stdenv.mkDerivation rec {
     patchShebangs meson_post_install.py
   '';
 
+  postInstall = ''
+    rm $out/share/applications/mimeinfo.cache
+  '';
+
   meta = {
     homepage = https://fontmanager.github.io/;
     description = "Simple font management for GTK+ desktop environments";