diff --git a/Dockerfile b/Dockerfile
index a1cef577be66f1a92dddde32c5e4b5223c20fed9..1d77bc74a4824b0caee64a688ccc36193e983498 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,4 +9,5 @@ RUN pip install -r /tmp/requirements.txt
 
 RUN $CONDA_DIR/envs/renku/bin/pip install -U -e git+https://github.com/SwissDataScienceCenter/renku-python.git#egg=renku
 
+RUN sudo apt-get update
 RUN sudo apt-get install -y poppler-utils