diff --git a/.github/actions/setup-tinygrad/action.yml b/.github/actions/setup-tinygrad/action.yml
index 9e64003107..caf38cc73e 100644
--- a/.github/actions/setup-tinygrad/action.yml
+++ b/.github/actions/setup-tinygrad/action.yml
@@ -129,7 +129,7 @@ runs:
       shell: bash
       run: |
         wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | sudo tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc
-        echo "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-19 main" | sudo tee /etc/apt/sources.list.d/llvm.list
+        echo "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-20 main" | sudo tee /etc/apt/sources.list.d/llvm.list
 
     - name: apt-get update + install
       if: runner.os == 'Linux' && (inputs.opencl == 'true' || inputs.amd == 'true' || inputs.cuda == 'true' || inputs.webgpu == 'true' || inputs.llvm == 'true')
@@ -162,7 +162,7 @@ runs:
         fi
         # **** LLVM ****
         if [[ "${{ inputs.llvm }}" == "true" ]]; then
-          pkgs+=" libllvm19 clang-19 lld-19"
+          pkgs+=" libllvm20 clang-20 lld-20"
         fi
 
         # ******** do install ********
@@ -246,4 +246,4 @@ runs:
     - name: Install LLVM (macOS)
       if: inputs.llvm == 'true' && runner.os == 'macOS'
       shell: bash
-      run: brew install llvm@19
+      run: brew install llvm@20
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f9dfe315d0..a19a212a98 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -578,7 +578,7 @@ jobs:
     - name: Run test_tiny on DSP
       run: DEBUG=2 DSP=1 python test/test_tiny.py
     - name: Test transcendentals
-      run: CC=clang-19 PYTHONPATH="." DEBUG=2 DSP=1 python test/test_transcendental.py TestTranscendentalVectorized
+      run: CC=clang-20 PYTHONPATH="." DEBUG=2 DSP=1 python test/test_transcendental.py TestTranscendentalVectorized
     - name: Test quantize onnx
       run: PYTHONPATH="." DEBUG=2 DSP=1 python3 test/test_quantize_onnx.py
     - name: Test LLVM=1 DEVECTORIZE=0
diff --git a/tinygrad/runtime/support/llvm.py b/tinygrad/runtime/support/llvm.py
index bb1490e583..d20de02a67 100644
--- a/tinygrad/runtime/support/llvm.py
+++ b/tinygrad/runtime/support/llvm.py
@@ -10,13 +10,13 @@ if sys.platform == 'win32':
 elif OSX:
   # Will raise FileNotFoundError if brew is not installed
   # `brew --prefix` will return even if formula is not installed
-  if not os.path.exists(brew_prefix:=subprocess.check_output(['brew', '--prefix', 'llvm@19']).decode().strip()):
-    raise FileNotFoundError('LLVM not found, you can install it with `brew install llvm@19`')
+  if not os.path.exists(brew_prefix:=subprocess.check_output(['brew', '--prefix', 'llvm@20']).decode().strip()):
+    raise FileNotFoundError('LLVM not found, you can install it with `brew install llvm@20`')
   LLVM_PATH: str|None = os.path.join(brew_prefix, 'lib', 'libLLVM.dylib')
 else:
   LLVM_PATH = ctypes.util.find_library('LLVM')
   # use newer LLVM if possible
-  for ver in reversed(range(14, 19+1)):
+  for ver in reversed(range(14, 20+1)):
     if LLVM_PATH is not None: break
     LLVM_PATH = ctypes.util.find_library(f'LLVM-{ver}')
   if LLVM_PATH is None: