diff --git a/pkgs/applications/networking/mumble/default.nix b/pkgs/applications/networking/mumble/default.nix
index 50759da2fd1a..9a5730580cb1 100644
--- a/pkgs/applications/networking/mumble/default.nix
+++ b/pkgs/applications/networking/mumble/default.nix
@@ -78,6 +78,7 @@ let
           "-D bundled-gsl=OFF"
           "-D bundled-json=OFF"
           "-D warnings-as-errors=OFF" # protobuf 34.x `[[nodiscard]]` workaround https://github.com/mumble-voip/mumble/issues/7102
+          "-D use-timestamps=OFF"
         ]
         ++ (overrides.cmakeFlags or [ ]);
 
@@ -151,7 +152,6 @@ let
       env.NIX_CFLAGS_COMPILE = lib.optionalString speechdSupport "-I${speechd-minimal}/include/speech-dispatcher";
 
       patches = [
-        ./disable-overlay-build.patch
         ./fix-plugin-copy.patch
       ];
 
@@ -165,6 +165,7 @@ let
           --source-dir=$NIX_BUILD_TOP/source/ \
           --binary-dir=$out \
           --only-appbundle \
+          --no-overlay \
           --version "${source.version}"
 
         mkdir -p $out/Applications $out/bin
@@ -216,14 +217,14 @@ let
     } source;
 
   source = rec {
-    version = "1.5.857";
+    version = "1.5.901";
 
     # Needs submodules
     src = fetchFromGitHub {
       owner = "mumble-voip";
       repo = "mumble";
       tag = "v${version}";
-      hash = "sha256-4ySak2nzT8p48waMgBc9kLrvFB8716e7p0G4trzuh1k=";
+      hash = "sha256-UBJH7EwfWvInuSD6ZALOKeVnWdfh/rmq8GVLG5URjOQ=";
       fetchSubmodules = true;
     };
   };
diff --git a/pkgs/applications/networking/mumble/disable-overlay-build.patch b/pkgs/applications/networking/mumble/disable-overlay-build.patch
deleted file mode 100644
index 9d2aff0d8da0..000000000000
--- a/pkgs/applications/networking/mumble/disable-overlay-build.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-diff --git a/macx/scripts/osxdist.py b/macx/scripts/osxdist.py
-index bdc7fcbd2..2114caf37 100755
---- a/macx/scripts/osxdist.py
-+++ b/macx/scripts/osxdist.py
-@@ -128,7 +128,7 @@ class AppBundle(object):
- 				shutil.copy(rsrc, os.path.join(rsrcpath, b))
-
- 		# Extras
--		shutil.copy(os.path.join(options.binary_dir, 'MumbleOverlay.pkg'), os.path.join(rsrcpath, 'MumbleOverlay.pkg'))
-+		# shutil.copy(os.path.join(options.binary_dir, 'MumbleOverlay.pkg'), os.path.join(rsrcpath, 'MumbleOverlay.pkg'))
-
- 	def copy_codecs(self):
- 		'''
-@@ -275,7 +276,7 @@ def package_client():
- 		title = 'Mumble %s' % ver
-
- 	# Fix overlay installer package
--	create_overlay_package()
-+	# create_overlay_package()
- 	if options.only_overlay:
- 		sys.exit(0)