diff --git a/.github/workflows/CheckCompatBounds.yml b/.github/workflows/CheckCompatBounds.yml
index f218272..cbdd26a 100644
--- a/.github/workflows/CheckCompatBounds.yml
+++ b/.github/workflows/CheckCompatBounds.yml
@@ -73,6 +73,13 @@ jobs:
       - uses: julia-actions/cache@v3
         if: "${{ inputs.cache }}"
         with:
+          # A local registry lives in the depot as a git clone, unlike General's
+          # packed form, and `Pkg.Registry.update` advances it by rebasing onto
+          # `origin/main`. A clone that once fails to rebase stays broken, and the
+          # cache hands the same broken clone to every later run, so resolution
+          # silently falls back to stale registry data and reports the result as
+          # unsatisfiable compat bounds. Re-clone it instead of restoring it.
+          cache-registries: "${{ inputs.localregistry == '' }}"
           token: "${{ secrets.GITHUB_TOKEN }}"
           # See the comment in `Tests.yml`: don't cache a failed job's
           # half-installed depot, which would otherwise poison the cache.
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index 5b51e85..b614519 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -97,6 +97,13 @@ jobs:
       - uses: julia-actions/cache@v3
         if: "${{ inputs.cache }}"
         with:
+          # A local registry lives in the depot as a git clone, unlike General's
+          # packed form, and `Pkg.Registry.update` advances it by rebasing onto
+          # `origin/main`. A clone that once fails to rebase stays broken, and the
+          # cache hands the same broken clone to every later run, so resolution
+          # silently falls back to stale registry data and reports the result as
+          # unsatisfiable compat bounds. Re-clone it instead of restoring it.
+          cache-registries: "${{ inputs.localregistry == '' }}"
           token: "${{ secrets.GITHUB_TOKEN }}"
           # See the comment in `Tests.yml`: don't cache a failed job's
           # half-installed depot, which would otherwise poison the cache.
diff --git a/.github/workflows/Registrator.yml b/.github/workflows/Registrator.yml
index 6db0f9a..9f87a97 100644
--- a/.github/workflows/Registrator.yml
+++ b/.github/workflows/Registrator.yml
@@ -75,6 +75,13 @@ jobs:
 
       - uses: julia-actions/cache@v3
         with:
+          # A local registry lives in the depot as a git clone, unlike General's
+          # packed form, and `Pkg.Registry.update` advances it by rebasing onto
+          # `origin/main`. A clone that once fails to rebase stays broken, and the
+          # cache hands the same broken clone to every later run, so resolution
+          # silently falls back to stale registry data and reports the result as
+          # unsatisfiable compat bounds. Re-clone it instead of restoring it.
+          cache-registries: "${{ inputs.localregistry == '' }}"
           delete-old-caches: false
           # See the comment in `Tests.yml`: don't cache a failed job's
           # half-installed depot, which would otherwise poison the cache.
diff --git a/.github/workflows/Tests.yml b/.github/workflows/Tests.yml
index 8ac90ba..debb3c5 100644
--- a/.github/workflows/Tests.yml
+++ b/.github/workflows/Tests.yml
@@ -179,6 +179,13 @@ jobs:
       - uses: julia-actions/cache@v3
         if: "${{ steps.classify.outputs.triggers == 'true' && inputs.cache }}"
         with:
+          # A local registry lives in the depot as a git clone, unlike General's
+          # packed form, and `Pkg.Registry.update` advances it by rebasing onto
+          # `origin/main`. A clone that once fails to rebase stays broken, and the
+          # cache hands the same broken clone to every later run, so resolution
+          # silently falls back to stale registry data and reports the result as
+          # unsatisfiable compat bounds. Re-clone it instead of restoring it.
+          cache-registries: "${{ inputs.localregistry == '' }}"
           token: "${{ secrets.GITHUB_TOKEN }}"
           # Restore the pre-v3 behavior: don't save a cache from a failed
           # job. v3 caches on failure by default, which poisons the cache