diff --git a/.github/workflows/daily-builds.yml b/.github/workflows/daily-builds.yml
index f61be525c..2e0f3639c 100644
--- a/.github/workflows/daily-builds.yml
+++ b/.github/workflows/daily-builds.yml
@@ -30,9 +30,11 @@ jobs:
           - { image: clang, build_name: clang_lifetime, command: build.sh, build: lifetime-trunk }
           - { image: clang, build_name: clang_llvmflang, command: build.sh, build: llvmflang-trunk }
           - { image: clang, build_name: clang_patmat, command: build.sh, build: patmat-trunk }
-          - { image: clang, build_name: clang_embed, command: build.sh, build: embed-trunk }
-          - { image: clang, build_name: llvm_spirv, command: build.sh, build: llvm-spirv }
           - { image: clang, build_name: clang_parmexpr, command: build-parmexpr.sh, build: trunk }
+            # see https://github.com/compiler-explorer/clang-builder/issues/28
+            #- { image: clang, build_name: clang_embed, command: build.sh, build: embed-trunk }
+            # see https://github.com/compiler-explorer/clang-builder/issues/29
+            #- { image: clang, build_name: llvm_spirv, command: build.sh, build: llvm-spirv }
 
     name: Daily build of ${{ matrix.build_name }}
     runs-on: [ 'ce', 'ubuntu' ]