diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b95d23bcd0cb7d070e25802c39bd9baa6554134a..42a4574bc9a54c1870419f825d19cfbf0f54ac71 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ image: ubuntu:latest
 
 before_script:
   - export DEBIAN_FRONTEND=noninteractive
-  - apt-get update -qq && apt-get install -y -qq build-essential libhdf5-serial-dev gfortran csh git libtool-bin autoconf openmpi-bin openmpi-common libopenmpi-dev python3 python3-setuptools python3-numpy python3-scipy python3-matplotlib python3-dev
+  - apt-get update -qq && apt-get install -y -qq build-essential libhdf5-serial-dev gfortran csh git libtool-bin autoconf openmpi-bin openmpi-common libopenmpi-dev python3 python3-setuptools python3-numpy python3-scipy python3-matplotlib python3-dev python3-h5py
   - export LHOME=`pwd`
 # Compile grackle
   - mkdir grackle