diff --git a/package/ci/appveyor-cache-reset.txt b/package/ci/appveyor-cache-reset.txt
index f7416fddf..6e3e6bb88 100644
--- a/package/ci/appveyor-cache-reset.txt
+++ b/package/ci/appveyor-cache-reset.txt
@@ -1,3 +1,3 @@
 # Increase this number every time you want to reset AppVeyor cache.
 # http://help.appveyor.com/discussions/questions/1310-delete-cache
-0
+1
diff --git a/package/ci/appveyor.yml b/package/ci/appveyor.yml
index 0a07a8779..ad2ea40dc 100644
--- a/package/ci/appveyor.yml
+++ b/package/ci/appveyor.yml
@@ -111,7 +111,9 @@ environment:
 install:
 # Ninja. `cinst ninja` started 503ing in late November 2019 and wasn't really
 # reliable before either. So install by hand, as that's reliable always.
-- IF NOT EXIST %APPVEYOR_BUILD_FOLDER%\ninja-win.zip appveyor DownloadFile https://github.com/ninja-build/ninja/releases/download/v1.9.0/ninja-win.zip
+# Version 1.11 needed to make UTF-8 work with corrade_add_resource():
+# https://github.com/ninja-build/ninja/pull/1915
+- IF NOT EXIST %APPVEYOR_BUILD_FOLDER%\ninja-win.zip appveyor DownloadFile https://github.com/ninja-build/ninja/releases/download/v1.11.0/ninja-win.zip
 - 7z x ninja-win.zip -oC:/tools/ninja
 
 - set PATH=C:/tools/ninja;%PATH%