diff --git a/pika-build-config/v3.sh b/pika-build-config/v3.sh
index fd50f59e8..32ee41f8e 100644
--- a/pika-build-config/v3.sh
+++ b/pika-build-config/v3.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.3.74-1"
-export PIKA_PACKAGE_NAME="rust-backtrace"
+export PIKA_PACKAGE_VERSION="0.4.0-4"
+export PIKA_PACKAGE_NAME="rust-iter-fixed"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b1"