diff --git a/quickwit/quickwit-control-plane/src/model/shard_table.rs b/quickwit/quickwit-control-plane/src/model/shard_table.rs
index 17323d18fcf..8eb75e2ccf2 100644
--- a/quickwit/quickwit-control-plane/src/model/shard_table.rs
+++ b/quickwit/quickwit-control-plane/src/model/shard_table.rs
@@ -30,21 +30,14 @@ use quickwit_proto::ingest::{Shard, ShardState};
 use quickwit_proto::types::{IndexUid, NodeId, ShardId, SourceId, SourceUid};
 use tracing::{error, info, warn};
 
-/// Limits the number of shards that can be opened for scaling up a source to 12 per minute.
+/// Limits the number of shards that can be opened for scaling up a source to 5 per minute.
 const SCALING_UP_RATE_LIMITER_SETTINGS: RateLimiterSettings = RateLimiterSettings {
-    burst_limit: 12,
+    burst_limit: 5,
     rate_limit: ConstantRate::new(5, Duration::from_secs(60)),
-    refill_period: Duration::from_secs(5),
+    refill_period: Duration::from_secs(12),
 };
 
-/// Limits the number of shards that can be closed for scaling down a source to 2 per minute.
-#[cfg(not(test))]
-const SCALING_DOWN_RATE_LIMITER_SETTINGS: RateLimiterSettings = RateLimiterSettings {
-    burst_limit: 2,
-    rate_limit: ConstantRate::new(2, Duration::from_secs(60)),
-    refill_period: Duration::from_secs(30),
-};
-#[cfg(test)]
+/// Limits the number of shards that can be closed for scaling down a source to 1 per minute.
 const SCALING_DOWN_RATE_LIMITER_SETTINGS: RateLimiterSettings = RateLimiterSettings {
     burst_limit: 1,
     rate_limit: ConstantRate::new(1, Duration::from_secs(60)),