diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6171120..b544bc3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
   test-bot:
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, macos-12, macos-13]
+        os: [ubuntu-20.04, ubuntu-22.04, macos-13, macos-latest]
     runs-on: ${{ matrix.os }}
     env:
       HOMEBREW_NO_INSTALL_FROM_API: 1
diff --git a/Formula/coveralls.rb b/Formula/coveralls.rb
index cc2c276..59dc99d 100644
--- a/Formula/coveralls.rb
+++ b/Formula/coveralls.rb
@@ -1,23 +1,25 @@
 class Coveralls < Formula
   desc "Self-contained, universal coverage uploader for Coveralls"
   homepage "https://github.com/coverallsapp/coverage-reporter"
-  url "https://github.com/coverallsapp/coverage-reporter/archive/refs/tags/v0.6.14.tar.gz"
-  sha256 "32ddfdd3d6b9001ccf394d9679c919f506eb35cb83dcba8fd17ba2c898bff027"
+  url "https://github.com/coverallsapp/coverage-reporter/archive/refs/tags/v0.6.15.tar.gz"
+  sha256 "b29d4b2c61ebce695c35077099da3a53b72c1280f77da4a220288ff306508e79"
   license "MIT"
 
   bottle do
-    root_url "https://github.com/coverallsapp/homebrew-coveralls/releases/download/coveralls-0.6.14"
-    sha256 cellar: :any,                 ventura:      "ab6b4363091e8fa9bbc8a9564f60e568850ed2bd48e17213c5ba524f6ffce4ae"
-    sha256 cellar: :any,                 monterey:     "1297cfdf791ae7a8b1782b241911d408d45ff26e39efa550327a6eab814f815e"
-    sha256 cellar: :any_skip_relocation, x86_64_linux: "d63e1305e71eb57b76b0a818c390dec73f2dc9dbabab80c10ce4de3b37c7e646"
+    root_url "https://github.com/coverallsapp/homebrew-coveralls/releases/download/coveralls-0.6.15"
+    sha256 cellar: :any,                 arm64_sonoma:  "6ca174fe2a7b2fb68d7c3fe786aea03a234e4d78c49f452e724885c80d89b5d9"
+    sha256 cellar: :any,                 ventura:       "63968457a0c123ab68972e96f8d265634bbd06c357d56f6f30b2005b9ac6c017"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:  "a1a657b849815801ec68a578179eb95e78c7cda2b9070cf93a54882c7638272e"
   end
 
   depends_on "crystal" => :build
   depends_on "bdw-gc"
   depends_on "libevent"
   depends_on "libyaml"
+  depends_on "openssl@3"
   depends_on "pcre2"
   depends_on "sqlite"
+  depends_on "zlib"
 
   uses_from_macos "libxml2"