diff --git a/Formula/btllib.rb b/Formula/btllib.rb
index 61a56227a..abf355964 100644
--- a/Formula/btllib.rb
+++ b/Formula/btllib.rb
@@ -22,7 +22,7 @@ class Btllib < Formula
   depends_on "ninja" => :build
   depends_on "pkg-config" => :build
   depends_on "python-setuptools" => :build
-  depends_on "python@3.12" => :build
+  depends_on "python@3.13" => :build
   depends_on "swig" => :build
   depends_on "gcovr"
   depends_on "samtools"
@@ -36,7 +36,7 @@ class Btllib < Formula
   end
 
   def python3
-    "python3.12"
+    "python3.13"
   end
 
   def install