diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index 42bd9da05..b370c736f 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:18.1.8-11"
-export PIKA_PACKAGE_NAME="llvm-toolchain-18"
+export PIKA_PACKAGE_VERSION="0.3.2-1"
+export PIKA_PACKAGE_NAME="ocaml-asn1-combinators"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"