diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 6a87d09..f832cf8 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Deps
-        run: opam install thread-local-storage trace trace-tef trace-fuchsia ppx_trace
+        run: opam install thread-local-storage lwt trace trace-tef trace-fuchsia ppx_trace
 
       - name: Build
         run: opam exec -- odig odoc --cache-dir=_doc/ trace trace-tef trace-fuchsia ppx_trace
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5d3e76d..3b46b61 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -40,14 +40,9 @@ jobs:
       - run: opam exec -- dune runtest -p trace-tef,trace-fuchsia
 
       # with depopts
-      - run: opam install hmap thread-local-storage
+      - run: opam install thread-local-storage lwt
       - run: opam exec -- dune build '@install' -p trace,trace-tef,trace-fuchsia
 
-      - run: opam install picos_aux
-        if: ${{ !contains(matrix.container, 'ci-4.') }}
-      - run: opam exec -- dune build '@install' -p trace,trace-tef,trace-fuchsia
-        if: ${{ !contains(matrix.container, 'ci-4.') }}
-
       - run: opam install mtime
       - run: opam exec -- dune build '@install' -p trace,trace-tef,trace-fuchsia