diff --git a/.github/workflows/bump.yml b/.github/workflows/bump.yml
index 9a15e5580..49ea78511 100644
--- a/.github/workflows/bump.yml
+++ b/.github/workflows/bump.yml
@@ -1,19 +1,15 @@
-name: Bump
-
 on:
-    push:
-      tags:
-        - '*'
+  push:
+    tags: '*'
 
 jobs:
-  bump:
-    runs-on: macos-latest
+  homebrew:
+    name: Bump Homebrew formula
+    runs-on: ubuntu-latest
     steps:
-      - name: Checkout repo
-        uses: actions/checkout@v2
-      - name: Bump formulae
-        uses: dawidd6/action-homebrew-bump-formula@v3
-        continue-on-error: true
+      - uses: mislav/bump-homebrew-formula-action@v1
         with:
-          token: ${{secrets.brew}}
-          formula: rustscan
\ No newline at end of file
+          # A PR will be sent to github.com/Homebrew/homebrew-core to update this formula:
+          formula-name: rustscan
+        env:
+          COMMITTER_TOKEN: ${{secrets.brew}}
\ No newline at end of file
diff --git a/fixtures/empty_hosts.txt b/fixtures/empty_hosts.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/fixtures/naughty_strings.txt b/fixtures/naughty_strings.txt
new file mode 100644
index 000000000..9e3e816c8
--- /dev/null
+++ b/fixtures/naughty_strings.txt
@@ -0,0 +1,42 @@
+# https://github.com/minimaxir/big-list-of-naughty-strings
+
+
+­؀؁؂؃؄؅؜۝܏᠎​‌‍‎‏‪‫‬‭‮⁠⁡⁢⁣⁤⁦⁧⁨⁩𑂽𛲠𛲡𛲢𛲣𝅳𝅴𝅵𝅶𝅷𝅸𝅹𝅺󠀁󠀠󠀡󠀢󠀣󠀤󠀥󠀦󠀧󠀨󠀩󠀪󠀫󠀬󠀭󠀮󠀯󠀰󠀱󠀲󠀳󠀴󠀵󠀶󠀷󠀸󠀹󠀺󠀻󠀼󠀽󠀾󠀿󠁀󠁁󠁂󠁃󠁄󠁅󠁆󠁇󠁈󠁉󠁊󠁋󠁌󠁍󠁎󠁏󠁐󠁑󠁒󠁓󠁔󠁕󠁖󠁗󠁘󠁙󠁚󠁛󠁜󠁝󠁞󠁟󠁠󠁡󠁢󠁣󠁤󠁥󠁦󠁧󠁨󠁩󠁪󠁫󠁬󠁭󠁮󠁯󠁰󠁱󠁲󠁳󠁴󠁵󠁶󠁷󠁸󠁹󠁺󠁻󠁼󠁽󠁾󠁿
+
+Ω≈ç√∫˜µ≤≥÷
+åß∂ƒ©˙∆˚¬…æ
+œ∑´®†¥¨ˆøπ“‘
+¡™£¢∞§¶•ªº–≠
+¸˛Ç◊ı˜Â¯˘¿
+ÅÍÎÏ˝ÓÔÒÚÆ☃
+Œ„´‰ˇÁ¨ˆØ∏”’
+`⁄€‹›fifl‡°·‚—±
+⅛⅜⅝⅞
+ЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя
+٠١٢٣٤٥٦٧٨٩
+
+
+
+⁰⁴⁵
+₀₁₂
+⁰⁴⁵₀₁₂
+ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็
+
+田中さんにあげて下さい
+パーティーへ行かないか
+和製漢語
+部落格
+사회과학원 어학연구소
+찦차를 타고 온 펲시맨과 쑛다리 똠방각하
+社會科學院語學研究所
+울란바토르
+𠜎𠜱𠝹𠱓𠱸𠲖𠳏
+𝐓𝐡𝐞 𝐪𝐮𝐢𝐜𝐤 𝐛𝐫𝐨𝐰𝐧 𝐟𝐨𝐱 𝐣𝐮𝐦𝐩𝐬 𝐨𝐯𝐞𝐫 𝐭𝐡𝐞 𝐥𝐚𝐳𝐲 𝐝𝐨𝐠
+𝕿𝖍𝖊 𝖖𝖚𝖎𝖈𝖐 𝖇𝖗𝖔𝖜𝖓 𝖋𝖔𝖝 𝖏𝖚𝖒𝖕𝖘 𝖔𝖛𝖊𝖗 𝖙𝖍𝖊 𝖑𝖆𝖟𝖞 𝖉𝖔𝖌
+𝑻𝒉𝒆 𝒒𝒖𝒊𝒄𝒌 𝒃𝒓𝒐𝒘𝒏 𝒇𝒐𝒙 𝒋𝒖𝒎𝒑𝒔 𝒐𝒗𝒆𝒓 𝒕𝒉𝒆 𝒍𝒂𝒛𝒚 𝒅𝒐𝒈
+𝓣𝓱𝓮 𝓺𝓾𝓲𝓬𝓴 𝓫𝓻𝓸𝔀𝓷 𝓯𝓸𝔁 𝓳𝓾𝓶𝓹𝓼 𝓸𝓿𝓮𝓻 𝓽𝓱𝓮 𝓵𝓪𝔃𝔂 𝓭𝓸𝓰
+𝕋𝕙𝕖 𝕢𝕦𝕚𝕔𝕜 𝕓𝕣𝕠𝕨𝕟 𝕗𝕠𝕩 𝕛𝕦𝕞𝕡𝕤 𝕠𝕧𝕖𝕣 𝕥𝕙𝕖 𝕝𝕒𝕫𝕪 𝕕𝕠𝕘
+𝚃𝚑𝚎 𝚚𝚞𝚒𝚌𝚔 𝚋𝚛𝚘𝚠𝚗 𝚏𝚘𝚡 𝚓𝚞𝚖𝚙𝚜 𝚘𝚟𝚎𝚛 𝚝𝚑𝚎 𝚕𝚊𝚣𝚢 𝚍𝚘𝚐
+⒯⒣⒠ ⒬⒰⒤⒞⒦ ⒝⒭⒪⒲⒩ ⒡⒪⒳ ⒥⒰⒨⒫⒮ ⒪⒱⒠⒭ ⒯⒣⒠ ⒧⒜⒵⒴ ⒟⒪⒢
+
+ثم نفس سقطت وبالتحديد،, جزيرتي باستخدام أن دنو. إذ هنا؟ الستار وتنصيب كان. أهّل ايطاليا، بريطانيا-فرنسا قد أخذ. سليمان، إتفاقية بين ما, يذكر الحدود أي بعد, معاملة بولندا، الإطلاق عل إيو.
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 52464991b..1f0ee9585 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -476,4 +476,22 @@ mod tests {
         let ips = parse_addresses(&opts);
         assert_eq!(ips.len(), 3);
     }
+
+    #[test]
+    fn parse_empty_hosts_file() {
+        // Host file contains IP, Hosts, incorrect IPs, incorrect hosts
+        let mut opts = Opts::default();
+        opts.addresses = vec!["fixtures/empty_hosts.txt".to_owned()];
+        let ips = parse_addresses(&opts);
+        assert_eq!(ips.len(), 0);
+    }
+
+    #[test]
+    fn parse_naughty_host_file() {
+        // Host file contains IP, Hosts, incorrect IPs, incorrect hosts
+        let mut opts = Opts::default();
+        opts.addresses = vec!["fixtures/naughty_string.txt".to_owned()];
+        let ips = parse_addresses(&opts);
+        assert_eq!(ips.len(), 0);
+    }
 }