diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 3b551ab..ef3c02a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -29,6 +29,7 @@ jobs:
 
       - uses: prefix-dev/setup-pixi@v0.8.1
         with:
+          manifest-path: Ribasim-NL/pixi.toml
           pixi-version: "latest"
 
       - name: Check Quarto installation and all engines
diff --git a/.github/workflows/python_lint.yml b/.github/workflows/python_lint.yml
index a74ff85..4fbe4cd 100644
--- a/.github/workflows/python_lint.yml
+++ b/.github/workflows/python_lint.yml
@@ -29,6 +29,7 @@ jobs:
 
       - uses: prefix-dev/setup-pixi@v0.8.1
         with:
+          manifest-path: Ribasim-NL/pixi.toml
           pixi-version: "latest"
 
       - name: Run mypy on hydamo
diff --git a/.github/workflows/python_tests.yml b/.github/workflows/python_tests.yml
index d58f22b..708bd8a 100644
--- a/.github/workflows/python_tests.yml
+++ b/.github/workflows/python_tests.yml
@@ -35,6 +35,7 @@ jobs:
 
       - uses: prefix-dev/setup-pixi@v0.8.1
         with:
+          manifest-path: Ribasim-NL/pixi.toml
           pixi-version: "latest"
 
       - name: Run tests