diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index 8508ecffb..817ac1a91 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="20230607+deb12u7"
-export PIKA_PACKAGE_NAME="debian-installer"
+export PIKA_PACKAGE_VERSION="1:19.1.0~++rc3-2"
+export PIKA_PACKAGE_NAME="llvm-toolchain-19"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"