diff --git a/pika-build-config/i386.sh b/pika-build-config/i386.sh
index 6b40c61ca..36e7db643 100755
--- a/pika-build-config/i386.sh
+++ b/pika-build-config/i386.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0.0+dfsg-2"
-export PIKA_PACKAGE_NAME="sphinx-rtd-theme"
+export PIKA_PACKAGE_VERSION="1:18.1.8-9"
+export PIKA_PACKAGE_NAME="llvm-toolchain-18"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"