diff --git a/.github/actions/build-llvm/action.yml b/.github/actions/build-llvm/action.yml
index 4fda803..afd2448 100644
--- a/.github/actions/build-llvm/action.yml
+++ b/.github/actions/build-llvm/action.yml
@@ -35,7 +35,7 @@ inputs:
   llvm-builder-version:
     description: 'Version of the LLVM builder to use.'
     required: false
-    default: '1.0.25'
+    default: '1.0.26'
   ccache-key:
     description: 'Github Actions cache key for CCache.'
     required: false