diff --git a/.github/workflows/w3c_interop.yml b/.github/workflows/w3c_interop.yml
index 1e8c1989..85e77a7f 100644
--- a/.github/workflows/w3c_interop.yml
+++ b/.github/workflows/w3c_interop.yml
@@ -32,8 +32,9 @@ jobs:
       run: rebar3 as interop compile
 
     - uses: actions/checkout@v2
-      repository: 'https://github.com/w3c/trace-context'
-      path: 'trace-context'
+      with:
+        repository: 'w3c/trace-context'
+        path: 'trace-context'
     - name: Setup python
       uses: actions/setup-python@v2
       with:
@@ -41,8 +42,10 @@ jobs:
         architecture: x64
     - run: pip install aiohttp
     - run: |
-        erl -noinput -pa ./_build/interop/extras/interop/ $(rebar3 as interop path) -s w3c_trace_context_interop &
+        rebar3 as interop compile
 
+        erl -noinput -pa ./_build/interop/extras/interop/ $(rebar3 as interop path) -s w3c_trace_context_interop &
+        sleep 1
         cd trace-context/test
-        python3 test.py http://127.0.0.1:5000/test
+        STRICT_LEVEL=1 python3 test.py http://127.0.0.1:5000/test
       shell: bash
diff --git a/README.md b/README.md
index 71b7e4a3..fc1bbdea 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,12 @@
-OpenTelemetry
+OpenTelemetry Erlang/Elixir
 =====
 
-[![EEF Observability WG project](https://img.shields.io/badge/EEF-Observability-black)](https://github.com/erlef/eef-observability-wg)
-![Build Status](https://github.com/open-telemetry/opentelemetry-erlang/workflows/Common%20Test/badge.svg)
+[![Hex.pm](https://img.shields.io/hexpm/v/opentelemetry_api?label=API&style=for-the-badge)](https://hex.pm/packages/opentelemetry_api)
+[![Hex.pm](https://img.shields.io/hexpm/v/opentelemetry?label=SDK&style=for-the-badge)](https://hex.pm/packages/opentelemetry)
+[![Hex.pm](https://img.shields.io/hexpm/v/opentelemetry_exporter?label=OTLP%20Exporter&style=for-the-badge)](https://hex.pm/packages/opentelemetry_exporter)
+[![EEF Observability WG
+project](https://img.shields.io/badge/EEF-Observability-black?style=for-the-badge)](https://github.com/erlef/eef-observability-wg)
+[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/open-telemetry/opentelemetry-erlang/Erlang?style=for-the-badge)](https://github.com/open-telemetry/opentelemetry-erlang/actions)
 
 [OpenTelemetry](https://opentelemetry.io/) distributed tracing framework for
 Erlang and Elixir.
@@ -15,11 +19,11 @@ for a list of features supported.
 
 ## Requirements
 
-- OTP 21.3+
+- Erlang/OTP 22+
 
 If using the Elixir API:
 
-- Elixir 1.8+
+- Elixir 1.11+
 
 ## Contacting Us
 
@@ -151,7 +155,7 @@ Start the interop web server in a shell:
 ``` shell
 $ rebar3 as interop shell
 
-> w3c_trace_context_interop:run().
+> w3c_trace_context_interop:start().
 ```
 
 Then, clone the [W3C Trace Context repo](https://github.com/w3c/trace-context) and run the tests: