diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index d2d9aeb56..90c479050 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4:24.08.2-1"
-export PIKA_PACKAGE_NAME="mailimporter"
+export PIKA_PACKAGE_VERSION="27~exp1"
+export PIKA_PACKAGE_NAME="gcc-mingw-w64"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"