diff --git a/.gitmodules b/.gitmodules
index ec57ac48de..8373eef871 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,29 +1,24 @@
 [submodule "3rdparty/catch"]
 	path = 3rdparty/catch
 	url = https://github.com/wxWidgets/Catch.git
-	update = checkout
+	branch = wx
 [submodule "src/zlib"]
 	path = src/zlib
 	url = https://github.com/wxWidgets/zlib.git
 	branch = wx
-	update = checkout
 [submodule "src/png"]
 	path = src/png
 	url = https://github.com/wxWidgets/libpng.git
 	branch = wx
-	update = checkout
 [submodule "src/expat"]
 	path = src/expat
 	url = https://github.com/wxWidgets/libexpat.git
 	branch = wx
-	update = checkout
 [submodule "src/tiff"]
 	path = src/tiff
 	url = https://github.com/wxWidgets/libtiff.git
 	branch = wx
-	update = checkout
 [submodule "src/jpeg"]
 	path = src/jpeg
 	url = https://github.com/wxWidgets/libjpeg-turbo.git
 	branch = wx
-	update = checkout