diff --git a/requirements.txt b/requirements.txt
index f45766b8..d0c6017e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 torch
 torchvision
 safetensors
-git+https://github.com/huggingface/diffusers.git
+git+https://github.com/huggingface/diffusers.git@v0.30.1
 transformers
 lycoris-lora==1.8.3
 flatten_json
@@ -32,4 +32,4 @@ sentencepiece
 huggingface_hub
 peft
 gradio
-python-slugify
\ No newline at end of file
+python-slugify
diff --git a/toolkit/buckets.py b/toolkit/buckets.py
index 835c9eb9..0817b12c 100644
--- a/toolkit/buckets.py
+++ b/toolkit/buckets.py
@@ -140,6 +140,9 @@ def get_bucket_for_image_size(
     if bucket_size_list is None:
         # if real resolution is smaller, use that instead
         real_resolution = get_resolution(width, height)
+        # Make sure that resolution and real_resolution are integers
+        resolution = int(resolution)
+        real_resolution = int(real_resolution)
         resolution = min(resolution, real_resolution)
         bucket_size_list = get_bucket_sizes(resolution=resolution, divisibility=divisibility)