diff --git a/.buildkite/scripts/pull-request/pipeline.sh b/.buildkite/scripts/pull-request/pipeline.sh
index 3012308fbcace..9df50af3dabd0 100755
--- a/.buildkite/scripts/pull-request/pipeline.sh
+++ b/.buildkite/scripts/pull-request/pipeline.sh
@@ -3,7 +3,7 @@
 set -euo pipefail
 
 echo --- Installing bun
-npm install -g bun
+npm install -g bun@1.0.4
 
 echo --- Generating pipeline
 bun .buildkite/scripts/pull-request/pipeline.generate.ts