diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index d490940..657bd95 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -15,7 +15,7 @@ jobs:
           # - windows-latest
         ocaml-version:
           - 4.14
-          - 5.1
+          - 5.2
 
     runs-on: ${{ matrix.os }}
 
@@ -24,11 +24,10 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Use OCaml ${{ matrix.ocaml-version }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         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
@@ -38,3 +37,11 @@ jobs:
 
       - name: run test
         run: opam exec -- dune runtest
+
+      - run: opam install . --deps-only --with-test --criteria='+removed,+count[version-lag,solution]' --solver=builtin-0install
+
+      - name: build project with lower bounds
+        run: opam exec -- dune build
+
+      - name: run test with lower bounds
+        run: opam exec -- dune runtest
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index cc34b59..f20af6b 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,10 +11,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Use OCaml 5.1
+      - name: Use OCaml 5.2
         uses: ocaml/setup-ocaml@v2
         with:
-          ocaml-compiler: 5.1
+          ocaml-compiler: 5.2
           dune-cache: true
           opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
@@ -28,10 +28,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Use OCaml 5.1
+      - name: Use OCaml 5.2
         uses: ocaml/setup-ocaml@v2
         with:
-          ocaml-compiler: 5.1
+          ocaml-compiler: 5.2
           dune-cache: true
           opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
@@ -45,10 +45,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Use OCaml 5.1
+      - name: Use OCaml 5.2
         uses: ocaml/setup-ocaml@v2
         with:
-          ocaml-compiler: 5.1
+          ocaml-compiler: 5.2
           dune-cache: true
           opam-depext-flags: "--with-doc"
           allow-prerelease-opam: true
diff --git a/.github/workflows/opam-dependency-submission.yml b/.github/workflows/opam-dependency-submission.yml
index 72b1bec..d87b3c6 100644
--- a/.github/workflows/opam-dependency-submission.yml
+++ b/.github/workflows/opam-dependency-submission.yml
@@ -11,10 +11,10 @@ jobs:
       - name: Checkout tree
         uses: actions/checkout@v4
 
-      - name: Set-up OCaml 5.1
+      - name: Set-up OCaml 5.2
         uses: ocaml/setup-ocaml@v2
         with:
-          ocaml-compiler: 5.1
+          ocaml-compiler: 5.2
           dune-cache: true
           allow-prerelease-opam: true