diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a182c0f20..b3eb7f171 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -127,33 +127,33 @@ jobs:
       - name: Test halo2 book
         run: mdbook test -L target/debug/deps book/
 
-#   codecov:
-#     name: Code coverage
-#     runs-on: ubuntu-latest
-#
-#     steps:
-#       - uses: actions/checkout@v3
-#       # Use stable for this to ensure that cargo-tarpaulin can be built.
-#       - id: prepare
-#         uses: ./.github/actions/prepare
-#         with:
-#           toolchain: stable
-#           nightly-features: true
-#       - name: Install cargo-tarpaulin
-#         uses: actions-rs/cargo@v1
-#         with:
-#           command: install
-#           args: cargo-tarpaulin
-#       - name: Generate coverage report
-#         uses: actions-rs/cargo@v1
-#         with:
-#           command: tarpaulin
-#           args: >
-#             ${{ steps.prepare.outputs.feature-flags }}
-#             --timeout 600
-#             --out Xml
-#       - name: Upload coverage to Codecov
-#         uses: codecov/codecov-action@v3.1.4
+   codecov:
+     name: Code coverage
+     runs-on: ubuntu-latest
+
+     steps:
+       - uses: actions/checkout@v3
+       # Use stable for this to ensure that cargo-tarpaulin can be built.
+       - id: prepare
+         uses: ./.github/actions/prepare
+         with:
+           toolchain: stable
+           nightly-features: true
+       - name: Install cargo-tarpaulin
+         uses: actions-rs/cargo@v1
+         with:
+           command: install
+           args: cargo-tarpaulin
+       - name: Generate coverage report
+         uses: actions-rs/cargo@v1
+         with:
+           command: tarpaulin
+           args: >
+             ${{ steps.prepare.outputs.feature-flags }}
+             --timeout 3600
+             --out Xml
+       - name: Upload coverage to Codecov
+         uses: codecov/codecov-action@v3.1.4
 
   doc-links:
     name: Intra-doc links