diff --git a/.github/workflows/cargo_fuzz.yml b/.github/workflows/cargo_fuzz.yml
index b6867c8..f90e3e1 100644
--- a/.github/workflows/cargo_fuzz.yml
+++ b/.github/workflows/cargo_fuzz.yml
@@ -30,3 +30,5 @@ jobs:
 
       - name: Cargo fuzz build
         run: cargo fuzz build
+      - name: Cargo fuzz build (libraries/cbor)
+        run: cd libraries/cbor && cargo fuzz build && cd ../..