diff --git a/.travis.yml b/.travis.yml
index ccf04956..77861150 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: rust
 cache: cargo
+sudo: true
 
 rust:
   - stable
@@ -13,10 +14,12 @@ rust:
 env:
   global:
     - secure: "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"
+    - RUSTFLAGS="-C link-dead-code"
+    - CARGO_MAKE_RUN_CODECOV=true
 
 script:
   - cargo install -f --debug cargo-make
-  - cargo make ci-flow
+  - cargo make workspace-ci-flow --no-workspace
 
 before_deploy:
   - rm -rf target/package/
diff --git a/README.md b/README.md
index f017fe37..a1e75fff 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 
 [![Build Status](https://travis-ci.org/graphql-rust/juniper.svg?branch=master)](https://travis-ci.org/graphql-rust/juniper)
 [![Build status](https://ci.appveyor.com/api/projects/status/vsrwmsh9wobxugbs?svg=true)](https://ci.appveyor.com/project/theduke/juniper/branch/master)
+[![codecov](https://codecov.io/gh/graphql-rust/juniper/branch/master/graph/badge.svg)](https://codecov.io/gh/graphql-rust/juniper)
 [![Crates.io](https://img.shields.io/crates/v/juniper.svg?maxAge=2592000)](https://crates.io/crates/juniper)
 [![Gitter chat](https://badges.gitter.im/juniper-graphql/gitter.png)](https://gitter.im/juniper-graphql)