diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index fdeb90d..300a7ba 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -18,6 +18,8 @@ jobs:
       run: cargo build --verbose --release --all
     - name: Run tests
       run: cargo test --verbose --release --all
+    - name: Run slow tests
+      run: cargo test --verbose --release --all -- --ignored
 
   macOS:
     name: Test on macOS-latest
@@ -35,3 +37,5 @@ jobs:
       run: $HOME/.cargo/bin/cargo build --verbose --release --all
     - name: Run tests
       run: $HOME/.cargo/bin/cargo test --verbose --release --all
+    - name: Run slow tests
+      run: $HOME/.cargo/bin/cargo test --verbose --release --all -- --ignored
diff --git a/.travis.yml b/.travis.yml
index 399eaf1..caa44f7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,12 @@ language: rust
 rust:
   - 1.36.0
 
+addons:
+  apt:
+    packages:
+      # For cargo-tarpaulin
+      - libssl-dev
+
 cache: cargo
 
 before_script:
@@ -9,4 +15,17 @@ before_script:
 
 script:
   - cargo fmt --all -- --check
+  - cargo build --verbose --release --all
   - cargo test --verbose --release --all
+  - cargo test --verbose --release --all -- --ignored
+
+before_cache:
+  - rm -rf "$TRAVIS_HOME/.cargo/registry/src"
+  - cargo install cargo-tarpaulin || echo "cargo-tarpaulin already installed"
+  - cargo install cargo-update || echo "cargo-update already installed"
+  - cargo install-update -a # update outdated cached binaries
+
+after_success:
+  # Manually exclude packages that are going to be removed from the workspace
+  - travis_wait 35 cargo tarpaulin --release --timeout 600 --out Xml --packages "librustzcash,zcash_client_backend,zcash_primitives,zcash_proofs"
+  - bash <(curl -s https://codecov.io/bash)
diff --git a/zcash_proofs/src/circuit/sprout/mod.rs b/zcash_proofs/src/circuit/sprout/mod.rs
index 358e1bb..b946464 100644
--- a/zcash_proofs/src/circuit/sprout/mod.rs
+++ b/zcash_proofs/src/circuit/sprout/mod.rs
@@ -326,6 +326,7 @@ where
 }
 
 #[test]
+#[ignore]
 fn test_sprout_constraints() {
     use bellman::gadgets::test::*;
     use pairing::bls12_381::Bls12;