diff --git a/tasks/install_test_scripts.yml b/tasks/install_test_scripts.yml
index f4e27d33152a3f4a5ade7ae22293773a89ad1b05..ee768b532ca1b1a4eab33c3e877a751d742e318f 100644
--- a/tasks/install_test_scripts.yml
+++ b/tasks/install_test_scripts.yml
@@ -3,6 +3,7 @@
 
 - name: install prerequisites
   apt:
+    update_cache: true
     name: [
       'libdata-printer-perl',
       'libdatetime-format-http-perl',
@@ -11,7 +12,11 @@
     state: latest
 - name: install prerequisites for deep_fixity
   apt:
-    name: "libdigest-crc-perl"
+    update_cache: true
+    name: [
+      'libcryptx-perl',
+      'libdigest-crc-perl',
+    ]
     state: latest
 # This plugin is part of the community.general collection (version 4.0.2), which might not be installed on your computer.
 # https://docs.ansible.com/ansible/latest/collections/community/general/cpanm_module.html