diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 70302378..788ce7a8 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2047,15 +2047,19 @@ XML:
   - .ccxml
   - .clixml
   - .cproject
+  - .csproj
   - .dita
   - .ditamap
   - .ditaval
+  - .filters
+  - .fsproj
   - .glade
   - .grxml
   - .jelly
   - .kml
   - .launch
   - .mxml
+  - .nproj
   - .osm
   - .plist
   - .pluginspec
@@ -2067,6 +2071,7 @@ XML:
   - .scxml
   - .srdf
   - .svg
+  - .targets
   - .tmCommand
   - .tmLanguage
   - .tmPreferences
@@ -2075,6 +2080,8 @@ XML:
   - .tml
   - .ui
   - .urdf
+  - .vbproj
+  - .vcxproj
   - .vxml
   - .wsdl
   - .wxi