diff --git a/sam2_configs/sam2_hiera_t.yaml b/sam2_configs/sam2_hiera_t.yaml
index 89125f3..4904c92 100644
--- a/sam2_configs/sam2_hiera_t.yaml
+++ b/sam2_configs/sam2_hiera_t.yaml
@@ -85,7 +85,7 @@ model:
         num_layers: 2
 
   num_maskmem: 7
-  image_size: 1024
+  image_size: 512
   # apply scaled sigmoid on mask logits for memory encoder, and directly feed input mask as output mask
   # SAM decoder
   sigmoid_scale_for_mem_enc: 20.0