diff --git a/.github/workflows/packages.yml b/.github/workflows/packages.yml
index a46f2f70e..45f8fd503 100644
--- a/.github/workflows/packages.yml
+++ b/.github/workflows/packages.yml
@@ -214,7 +214,8 @@ jobs:
 
         # Publishing repository changes.
         if [ "$uploaded_files" = "true" ]; then
-          aptly_add_to_repo
+          if ! aptly_add_to_repo
+            exit 1
 
           # Usually temporary directory is deleted automatically, but in certain cases it is left.
           aptly_delete_dir
@@ -251,7 +252,8 @@ jobs:
 
         # Publishing repository changes.
         if [ "$uploaded_files" = "true" ]; then
-          aptly_add_to_repo
+          if ! aptly_add_to_repo
+            exit 1
 
           # Usually temporary directory is deleted automatically, but in certain cases it is left.
           aptly_delete_dir
diff --git a/scripts/aptly_api.sh b/scripts/aptly_api.sh
index a8973485a..7cacbdc9f 100644
--- a/scripts/aptly_api.sh
+++ b/scripts/aptly_api.sh
@@ -78,7 +78,9 @@ aptly_add_to_repo() {
     fi
   else
     echo "[$(date +%H:%M:%S)] Error: got http_status_code == '$http_status_code', packages may not appear in repository."
+    return 1
   fi
+  return 0
 }
 
 aptly_publish_repo() {