diff --git a/.github/workflows/bottle.yml b/.github/workflows/bottle.yml
index 0e4a49b..9c276d9 100644
--- a/.github/workflows/bottle.yml
+++ b/.github/workflows/bottle.yml
@@ -37,13 +37,12 @@ jobs:
       - name: test-bot
         run: |
           brew tap mwatelescope/tap
-          # TODO: casacore aoflagger birli
-          for package in cfitsio_reentrant casacore-data; do
+          for package in cfitsio_reentrant wcslib casacore-data casacore aoflagger birli; do
             brew test-bot mwatelescope/tap/$package
           done
       - name: audit
         run: |
-          for package in cfitsio_reentrant casacore-data casacore aoflagger birli; do
+          for package in cfitsio_reentrant wcslib casacore-data casacore aoflagger birli; do
             brew audit mwatelescope/tap/$package
           done
 
@@ -54,7 +53,7 @@ jobs:
         run: |
           # build casacore source first
           brew uninstall --ignore-dependencies --force cfitsio || true
-          for package in cfitsio_reentrant casacore-data casacore aoflagger birli; do
+          for package in cfitsio_reentrant wcslib casacore-data casacore aoflagger birli; do
             brew uninstall --ignore-dependencies --force $package || true
             brew install --formula --build-bottle mwatelescope/tap/$package
             brew postinstall mwatelescope/tap/$package
diff --git a/Formula/casacore.rb b/Formula/casacore.rb
index 28c80d2..adf9ed4 100644
--- a/Formula/casacore.rb
+++ b/Formula/casacore.rb
@@ -15,10 +15,10 @@ class Casacore < Formula
   depends_on "hdf5"
   depends_on "mwatelescope/tap/casacore-data"
   depends_on "mwatelescope/tap/cfitsio_reentrant"
+  depends_on "mwatelescope/tap/wcslib"
   depends_on "ncurses"
   depends_on "openblas"
   depends_on "readline"
-  depends_on "wcslib"
 
   if build.with?("python")
     # if this line changes https://github.com/Homebrew/homebrew-core/blob/dc61aaab304abbb8ef863eed3313b6661846f79e/Formula/b/boost-python3.rb#L28
diff --git a/Formula/wcslib.rb b/Formula/wcslib.rb
new file mode 100644
index 0000000..f4e4e97
--- /dev/null
+++ b/Formula/wcslib.rb
@@ -0,0 +1,40 @@
+# source: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/w/wcslib.rb
+class Wcslib < Formula
+  desc "Library and utilities for the FITS World Coordinate System"
+  homepage "https://www.atnf.csiro.au/computing/software/wcs/"
+  url "https://www.atnf.csiro.au/computing/software/wcs/wcslib-8.4.tar.bz2"
+  sha256 "960b844426d14a8b53cdeed78258aa9288cded99a7732c0667c64fa6a50126dc"
+  license "GPL-3.0-or-later"
+
+  livecheck do
+    url :homepage
+    regex(/href=.*?wcslib[._-]v?(\d+(?:\.\d+)+)\.t/i)
+  end
+
+  bottle do
+    sha256 cellar: :any,                 arm64_sequoia: "9b4c893d06fdc0f35e6d0068cd2c0f8e310bcc21fcd80242c8096895ef6bbdc5"
+    sha256 cellar: :any,                 arm64_sonoma:  "9d19f46e3c4eccaf8a8f0e47b15650a0d597fb7b1a0e41523f98c225733f79cd"
+    sha256 cellar: :any,                 arm64_ventura: "a8a2219881ba618ed874d2d8e398c6014e0acc2a8116f2786fa44354950d0050"
+    sha256 cellar: :any,                 sonoma:        "1e11d5347b5aabd5a8be7b58f255b296b32a27daea37dd6f1c96d58e05a099f9"
+    sha256 cellar: :any,                 ventura:       "7ad6caa1fcc73ee40853218467f7c69063672b81c9f57168c2fc3fe36a352581"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:  "5b4796b96042e9131506aaacb702c1e6cb372fddc463b0e328b5f46ea49bf342"
+  end
+
+  depends_on "mwatelescope/tap/cfitsio_reentrant"
+
+  def install
+    system "./configure", "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--prefix=#{prefix}",
+                          "--with-cfitsiolib=#{Formula["cfitsio"].opt_lib}",
+                          "--with-cfitsioinc=#{Formula["cfitsio"].opt_include}",
+                          "--without-pgplot",
+                          "--disable-fortran"
+    system "make", "install"
+  end
+
+  test do
+    piped = "SIMPLE  =" + (" "*20) + "T / comment" + (" "*40) + "END" + (" "*2797)
+    pipe_output("#{bin}/fitshdr", piped, 0)
+  end
+end