diff --git a/.github/workflows/ci-additional.yml b/.github/workflows/ci-additional.yml
index e99c31db..94ed0080 100644
--- a/.github/workflows/ci-additional.yml
+++ b/.github/workflows/ci-additional.yml
@@ -29,7 +29,7 @@ jobs:
           fetch-depth: 0 # fetch all branches and tags
 
       - name: setup environment
-        uses: prefix-dev/setup-pixi@8ca4608ef7f4daeb54f5205b20d0b7cb42f11143 # 0.8.14
+        uses: prefix-dev/setup-pixi@fef5c9568ca6c4ff7707bf840ab0692ba3f08293 # 0.9.0
         with:
           environments: "doctests"
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e837db17..6beb4819 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,7 +61,7 @@ jobs:
           fetch-depth: 0 # fetch all branches and tags
 
       - name: setup environment
-        uses: prefix-dev/setup-pixi@8ca4608ef7f4daeb54f5205b20d0b7cb42f11143 # 0.8.14
+        uses: prefix-dev/setup-pixi@fef5c9568ca6c4ff7707bf840ab0692ba3f08293 # 0.9.0
         with:
           environments: "${{ matrix.env }}"
 
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 360b7d6a..06806238 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -64,7 +64,7 @@ jobs:
           fetch-depth: 0 # fetch all branches and tags
 
       - name: setup environment
-        uses: prefix-dev/setup-pixi@8ca4608ef7f4daeb54f5205b20d0b7cb42f11143 # 0.8.14
+        uses: prefix-dev/setup-pixi@fef5c9568ca6c4ff7707bf840ab0692ba3f08293 # 0.9.0
         with:
           environments: "nightly"