diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index b7c44f922d..2b3682cca7 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -78,6 +78,8 @@ jobs:
     - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python }}
+    - name: Install UV
+      uses: astral-sh/setup-uv@v7
     - name: Install system dependencies
       run: sudo apt-get update && sudo apt-get install -y libkrb5-dev # for kerberos
     - name: Install
diff --git a/dev/spark/Dockerfile b/dev/spark/Dockerfile
index cd35671c4b..342b4f89a4 100644
--- a/dev/spark/Dockerfile
+++ b/dev/spark/Dockerfile
@@ -18,13 +18,14 @@ ARG BASE_IMAGE_SPARK_VERSION=4.0.1
 FROM apache/spark:${BASE_IMAGE_SPARK_VERSION}
 
 # Dependency versions - keep these compatible
-ARG ICEBERG_VERSION=1.10.0
+ARG ICEBERG_VERSION=1.10.1
 ARG ICEBERG_SPARK_RUNTIME_VERSION=4.0_2.13
 ARG SPARK_VERSION=4.0.1
 ARG HADOOP_VERSION=3.4.1
 ARG SCALA_VERSION=2.13
 ARG AWS_SDK_VERSION=2.24.6
 ARG MAVEN_MIRROR=https://repo.maven.apache.org/maven2
+ARG ICEBERG_RC_MIRROR=https://repository.apache.org/content/repositories/orgapacheiceberg-1276
 
 USER root
 WORKDIR ${SPARK_HOME}
@@ -55,9 +56,14 @@ RUN set -e && \
     for jar_path in ${JARS_TO_DOWNLOAD}; do \
         jar_name=$(basename "${jar_path}") && \
         echo "Downloading ${jar_name}..." && \
+        if echo "${jar_path}" | grep -q "^org/apache/iceberg/"; then \
+            mirror="${ICEBERG_RC_MIRROR}"; \
+        else \
+            mirror="${MAVEN_MIRROR}"; \
+        fi && \
         curl -fsSL --retry 3 --retry-delay 5 \
              -o "${jar_name}" \
-             "${MAVEN_MIRROR}/${jar_path}" && \
+             "${mirror}/${jar_path}" && \
         echo "✓ Downloaded ${jar_name}"; \
     done && \
     chown -R spark:spark "${SPARK_HOME}/jars"