diff --git a/.github/workflows/public-ci.yml b/.github/workflows/public-ci.yml
index e0d1b6c..3682e2d 100644
--- a/.github/workflows/public-ci.yml
+++ b/.github/workflows/public-ci.yml
@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       max-parallel: 2
       matrix:
-        os: [macos-14-xlarge] # , macos-13-xlarge]
+        os: [macos-15-xlarge] # , macos-13-xlarge]
         python-version: [3.11] # [3.9, 3.11]
     steps:
     - uses: actions/checkout@v4
diff --git a/setup.py b/setup.py
index 35759f9..9acb986 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,9 @@
         # Whisper TextDecoder model generation fails
         "transformers==4.53",
         "huggingface-hub",
-        "torch==2.6.0",
+        "torch==2.5.0",
+        # NumPy 2.4.0+ breaks CoreML conversion with torch 2.5.0
+        "numpy<2.4.0",
     ],
     extras_require={
         "pipelines": [
diff --git a/whisperkit/_version.py b/whisperkit/_version.py
index 3d26edf..df12433 100644
--- a/whisperkit/_version.py
+++ b/whisperkit/_version.py
@@ -1 +1 @@
-__version__ = "0.4.1"
+__version__ = "0.4.2"