diff --git a/.github/workflows/task_runner_custom_weighted_average.yml b/.github/workflows/task_runner_custom_weighted_average.yml
index 6d9e845..f458e97 100644
--- a/.github/workflows/task_runner_custom_weighted_average.yml
+++ b/.github/workflows/task_runner_custom_weighted_average.yml
@@ -10,6 +10,10 @@ on:
 permissions:
   contents: read
 
+env:
+  # A workaround for long FQDN names provided by GitHub actions.
+  FQDN: "localhost"
+
 jobs:
   build:
     strategy:
diff --git a/.github/workflows/task_runner_skc_compression.yml b/.github/workflows/task_runner_skc_compression.yml
index 9a777b3..dddc252 100644
--- a/.github/workflows/task_runner_skc_compression.yml
+++ b/.github/workflows/task_runner_skc_compression.yml
@@ -10,6 +10,10 @@ on:
 permissions:
   contents: read
 
+env:
+  # A workaround for long FQDN names provided by GitHub actions.
+  FQDN: "localhost"
+
 jobs:
   build:
     strategy: