diff --git a/.github/workflows/aarch64.yml b/.github/workflows/aarch64.yml
index 8ce4446626..645b09ffc7 100644
--- a/.github/workflows/aarch64.yml
+++ b/.github/workflows/aarch64.yml
@@ -30,6 +30,7 @@ jobs:
         with:
           repository: hermitcore/rusty-hermit
           submodules: true
+          ref: ea7377d3d616c25e6442dee041f8505280d6e317
       - name: Remove libhermit-rs submodule
         run: git rm -r libhermit-rs
       - name: Checkout libhermit-rs
diff --git a/.github/workflows/x86.yml b/.github/workflows/x86.yml
index 8284751960..dc2e125420 100644
--- a/.github/workflows/x86.yml
+++ b/.github/workflows/x86.yml
@@ -46,6 +46,7 @@ jobs:
         with:
           repository: hermitcore/rusty-hermit
           submodules: true
+          ref: ea7377d3d616c25e6442dee041f8505280d6e317
       - name: Remove libhermit-rs submodule
         run: git rm -r libhermit-rs
       - name: Checkout libhermit-rs