diff --git a/pika-build-config/v3.sh b/pika-build-config/v3.sh
index da9f2e265..0d6d56749 100644
--- a/pika-build-config/v3.sh
+++ b/pika-build-config/v3.sh
@@ -1,6 +1,6 @@
-export PIKA_PACKAGE_VERSION="1:19.1.0~++rc2-1~exp1"
-export PIKA_PACKAGE_NAME="llvm-toolchain-19"
+export PIKA_PACKAGE_VERSION="2:0.1~r495-2"
+export PIKA_PACKAGE_NAME="libmpc"
 export PIKA_PACKAGE_PATCH=false
-export PIKA_REBUILD=false
+export PIKA_REBUILD=true
 export PIKA_REBUILD_VERSION="b1"
-export PIKA_BUILD_ATTEMPT="1"
\ No newline at end of file
+export PIKA_BUILD_ATTEMPT="0"
\ No newline at end of file