diff --git a/helm/openneuro/values-production.yaml b/helm/openneuro/values-production.yaml
index d8613d27b..15aa6e4e0 100644
--- a/helm/openneuro/values-production.yaml
+++ b/helm/openneuro/values-production.yaml
@@ -58,7 +58,7 @@ workerDiskSize:
   - id: projects/hs-openneuro/zones/us-west1-c/disks/openneuro-prod-datasets-2
     size: 22000Gi
   - id: projects/hs-openneuro/zones/us-west1-c/disks/openneuro-prod-datasets-3
-    size: 24000Gi
+    size: 26000Gi
 
 # Disable Redis password for testing
 redis: