diff --git a/tools/docker/windows/Dockerfile b/tools/docker/windows/Dockerfile
index 13c0feea..53be741b 100644
--- a/tools/docker/windows/Dockerfile
+++ b/tools/docker/windows/Dockerfile
@@ -24,7 +24,7 @@ RUN pip3 install meson
 # See also: https://bugs.python.org/issue36011
 RUN pip3 install --upgrade certifi
 RUN pip3 install python-certifi-win32
-RUN (New-Object System.Net.WebClient).DownloadString('https://sourceforge.net') >$null
+RUN (New-Object System.Net.WebClient).DownloadString('https://sourceforge.net/projects/pcre/files/pcre/8.37/pcre-8.37.tar.gz.sig') >$null
 RUN (New-Object System.Net.WebClient).DownloadString('https://wrapdb.mesonbuild.com/v2/pcre_8.37-2/get_patch') >$null
 RUN (New-Object System.Net.WebClient).DownloadString('https://zlib.net/fossils/') >$null