diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index 152ac3a0f..5a415bb5f 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2:2.4.7-2"
-export PIKA_PACKAGE_NAME="sbcl"
+export PIKA_PACKAGE_VERSION="1:128.1.0esr-1"
+export PIKA_PACKAGE_NAME="thunderbird"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"