diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 5d18bcb..8b5ea0b 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -4,7 +4,6 @@ on:
   push:
     branches: [main]
   pull_request:
-# Spend CI time only on latest ref: https://github.com/jonhoo/rust-ci-conf/pull/5
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
@@ -25,6 +24,6 @@ jobs:
         uses: taiki-e/install-action@v2
         with:
           tool: cargo-fuzz
-      - name: cargo fuzz run --target x86_64-unknown-linux-gnu deserialize -- -max_total_time=5
-        run: cargo fuzz run --target x86_64-unknown-linux-gnu deserialize -- -max_total_time=5
+      - name: cargo fuzz run --target x86_64-unknown-linux-gnu deserialize -- -max_total_time=10
+        run: cargo fuzz run --target x86_64-unknown-linux-gnu deserialize -- -max_total_time=10