diff --git a/pika-build-config/i386.sh b/pika-build-config/i386.sh
index 999688df9..9d8e7a1e9 100755
--- a/pika-build-config/i386.sh
+++ b/pika-build-config/i386.sh
@@ -1,6 +1,6 @@
-export PIKA_PACKAGE_VERSION="1:17.0.6-17"
-export PIKA_PACKAGE_NAME="llvm-toolchain-17"
+export PIKA_PACKAGE_VERSION="1:18.1.8-11"
+export PIKA_PACKAGE_NAME="llvm-toolchain-18"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
-export PIKA_REBUILD_VERSION="b1"
-export PIKA_BUILD_ATTEMPT="1"
\ No newline at end of file
+export PIKA_REBUILD_VERSION="b0"
+export PIKA_BUILD_ATTEMPT="0"
\ No newline at end of file