diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b25c548c..6ae1292e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -59,7 +59,9 @@ jobs:
       - run: opam exec -- dune build @install -p opentelemetry,opentelemetry-lwt,opentelemetry-client-ocurl,opentelemetry-cohttp-lwt,opentelemetry-client-cohttp-lwt,opentelemetry-logs
 
       - run: opam pin trace --dev -y -n
-      - run: opam install trace
+      - run: opam pin ambient-context https://github.com/ocaml-tracing/ocaml-ambient-context.git -y -n
+      - run: opam install trace ambient-context
+
       - run: opam exec -- dune build @install -p opentelemetry
 
       - run: opam install ocaml-protoc