diff --git a/.github/actions/checkout-lez/action.yml b/.github/actions/checkout-lez/action.yml
index c965b943..e9beeded 100644
--- a/.github/actions/checkout-lez/action.yml
+++ b/.github/actions/checkout-lez/action.yml
@@ -14,7 +14,7 @@ inputs:
       `just update-lez`, replace this SHA, and open a PR. The scheduled
       lez-compat workflow overrides this with `main` to detect upstream drift.
     required: false
-    default: 64f8444a67e5cc93fb755f9c9292034bed2a657d
+    default: e37876a64028a335eb693198a1ed6a0e875ec5b4
 
 runs:
   using: composite
diff --git a/corpus/libfuzz/fuzz_state_transition/seed_empty_tx b/corpus/libfuzz/fuzz_state_transition/seed_empty_tx
new file mode 100644
index 00000000..b00ba871
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diff --git a/corpus/libfuzz/fuzz_stateless_verification/seed_empty_tx b/corpus/libfuzz/fuzz_stateless_verification/seed_empty_tx
new file mode 100644
index 00000000..b00ba871
Binary files /dev/null and b/corpus/libfuzz/fuzz_stateless_verification/seed_empty_tx differ
diff --git a/corpus/libfuzz/fuzz_transaction_decoding/seed_empty_tx b/corpus/libfuzz/fuzz_transaction_decoding/seed_empty_tx
new file mode 100644
index 00000000..b00ba871
Binary files /dev/null and b/corpus/libfuzz/fuzz_transaction_decoding/seed_empty_tx differ