diff --git a/Dockerfile b/Dockerfile
index 9ac810e..52d7130 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,8 +7,11 @@
 # =============================================================================
 FROM nvidia/cuda:12.9.0-devel-ubuntu24.04 AS builder
 
-# Install build dependencies
+# Install build dependencies (deadsnakes PPA required for python3.10 on Ubuntu 24.04)
 RUN apt-get update && apt-get install -y --no-install-recommends \
+    software-properties-common \
+    && add-apt-repository -y ppa:deadsnakes/ppa \
+    && apt-get update && apt-get install -y --no-install-recommends \
     python3.10 python3.10-venv python3.10-dev python3.10-distutils \
     build-essential curl \
     && rm -rf /var/lib/apt/lists/*
@@ -68,8 +71,11 @@ ENV PYTHONUNBUFFERED=1 \
 
 WORKDIR /app
 
-# Minimal runtime dependencies (no build tools)
+# Minimal runtime dependencies (deadsnakes PPA required for python3.10 on Ubuntu 24.04)
 RUN apt-get update && apt-get install -y --no-install-recommends \
+    software-properties-common \
+    && add-apt-repository -y ppa:deadsnakes/ppa \
+    && apt-get update && apt-get install -y --no-install-recommends \
     python3.10 \
     libgl1 libglib2.0-0 libgomp1 \
     curl pandoc \