diff --git a/backend/requirements-runtime.txt b/backend/requirements-runtime.txt
index e8a9074..e40e047 100644
--- a/backend/requirements-runtime.txt
+++ b/backend/requirements-runtime.txt
@@ -7,7 +7,7 @@ numpy>=2.5.1
 # Audio-event detection (YAMNet laughter/reaction channel) runs on ONNX Runtime —
 # no torch/TF, so it stays on the hermetic native path.
 onnxruntime>=1.28.0
-Pillow>=10.0.0
+Pillow>=12.3.0
 questionary>=2.1.1
 python-dotenv>=1.2.2
 yt-dlp>=2026.7.4
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 160e7de..aa2a2d5 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -16,7 +16,7 @@ numpy>=2.5.1
 onnxruntime>=1.28.0
 
 # Thumbnails
-Pillow>=10.0.0
+Pillow>=12.3.0
 
 # CLI interactive prompts
 questionary>=2.1.1