diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 3429f3e..5ab70da 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -28,7 +28,6 @@ jobs:
         with:
           ocaml-compiler: ${{ matrix.ocaml-version }}
           dune-cache: true
-          opam-depext-flags: "--with-test"
           allow-prerelease-opam: true
 
       - run: opam install . --deps-only --with-test
diff --git a/.github/workflows/deploy-doc.yml b/.github/workflows/deploy-doc.yml
index 5c981da..824fdab 100644
--- a/.github/workflows/deploy-doc.yml
+++ b/.github/workflows/deploy-doc.yml
@@ -35,7 +35,6 @@ jobs:
         with:
           ocaml-compiler: "5.2"
           dune-cache: true
-          opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
 
       - name: Install dependencies
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 931ee28..41523a6 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,7 +16,6 @@ jobs:
         with:
           ocaml-compiler: 5.2
           dune-cache: true
-          opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
 
       - name: Lint fmt
@@ -33,7 +32,6 @@ jobs:
         with:
           ocaml-compiler: 5.2
           dune-cache: true
-          opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
 
       - name: Lint opam
@@ -50,7 +48,6 @@ jobs:
         with:
           ocaml-compiler: 5.2
           dune-cache: true
-          opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
 
       - name: Lint doc