diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index c4e321c..8c4ea6f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -47,7 +47,9 @@ jobs:
           execute_install_scripts: true
 
       - name: Download HDF5 headers and MPI Fortran compiler
-        run: sudo apt-get install gfortran openmpi-bin libopenmpi-dev libhdf5-openmpi-dev libhdf5-openmpi-103 hdf5-helpers 
+        run: |
+          sudo apt-get update
+          sudo apt-get install gfortran openmpi-bin libopenmpi-dev libhdf5-openmpi-dev libhdf5-openmpi-103 hdf5-helpers
 
       - name: Create directories for component model and dependencies
         run: |