diff --git a/polkadot/.github/workflows/honggfuzz.yml b/polkadot/.github/workflows/honggfuzz.yml
index af0de3eb50..ab1cdf0d2e 100644
--- a/polkadot/.github/workflows/honggfuzz.yml
+++ b/polkadot/.github/workflows/honggfuzz.yml
@@ -13,6 +13,13 @@ jobs:
         with:
           fetch-depth: 1
 
+      - name: Cache Seed
+        id: cache-seed-round-trip
+        uses: actions/cache@v2
+        with:
+          path: erasure-coding/fuzzer/hfuzz_workspace
+          key: ${{ runner.os }}-erasure-coding
+
       - name: Install minimal stable Rust
         uses: actions-rs/toolchain@v1
         with:
@@ -52,6 +59,13 @@ jobs:
         with:
           fetch-depth: 1
 
+      - name: Cache Seed
+        id: cache-seed-reconstruct
+        uses: actions/cache@v2
+        with:
+          path: erasure-coding/fuzzer/hfuzz_workspace
+          key: ${{ runner.os }}-erasure-coding
+
       - name: Install minimal stable Rust
         uses: actions-rs/toolchain@v1
         with: