diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8b3bba41..e378b883 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -65,7 +65,9 @@ jobs:
           dune-cache: true
           allow-prerelease-opam: true
 
-      - run: opam pin picos --dev -y -n && opam install picos
+      # temporary until it's in a release
+      - run: opam pin https://github.com/c-cube/picos.git#simon/split-package -y -n
+
       - run: opam install -t moonpool moonpool-lwt --deps-only
       - run: opam exec -- dune build @install
       # install some depopts