diff --git a/.travis.yml b/.travis.yml
index 73c6ac5..b28902d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,6 @@ env:
   - LUA="lua=5.1"
   - LUA="lua=5.2"
   - LUA="lua=5.3"
-  - LUA="lua=5.4"
 
 before_install:
   - pip install hererocks
diff --git a/md-offliner-1.0-1.rockspec b/md-offliner-1.0-1.rockspec
index 9b88a9c..c01a965 100644
--- a/md-offliner-1.0-1.rockspec
+++ b/md-offliner-1.0-1.rockspec
@@ -12,7 +12,7 @@ description = {
    license = "MIT/X11"
 }
 dependencies = {
-   "lua >= 5.1, <= 5.4",
+   "lua >= 5.1, < 5.4",
    "luasocket >= 2.0.2-6",
    "luasec >= 0.9-1",
 }
diff --git a/spec/process_md_spec.lua b/spec/process_md_spec.lua
index 279f5bc..bab8eb1 100644
--- a/spec/process_md_spec.lua
+++ b/spec/process_md_spec.lua
@@ -71,7 +71,7 @@ describe("process_md", function()
 
             local content = f:read('a')
 
-            local header
+            local header, _
             _, header = ProcessMD.get_header(content, assets_dir .. 'tmp_dir/and one more.md', true)
             f:close()
 
diff --git a/src/main.lua b/src/main.lua
index ff2fc51..786c14c 100644
--- a/src/main.lua
+++ b/src/main.lua
@@ -47,7 +47,7 @@ local function upload_to_server(local_article_directory, server_cred, server_pat
         os.exit(1)
     end
 
-    local status, err = pcall(NetwOps.download_db, server_cred, server_path, local_article_directory)
+    status, err = pcall(NetwOps.download_db, server_cred, server_path, local_article_directory)
     if not status then
         print('Error: ' .. err)
         os.exit(1)
@@ -55,7 +55,7 @@ local function upload_to_server(local_article_directory, server_cred, server_pat
 
     NetwOps.insert_article(local_article_directory, document_name)
 
-    local status, err = pcall(NetwOps.upload_db, server_cred, server_path, local_article_directory)
+    status, err = pcall(NetwOps.upload_db, server_cred, server_path, local_article_directory)
     if not status then
         print('Error: ' .. err)
         os.exit(1)