diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d4b97e8..0085ec85 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,8 +40,11 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: lint
       - run: pixi run -e lint lint
 
@@ -56,8 +59,11 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: ${{ matrix.package }}
       - name: Run tests
         run: pixi run -e ${{ matrix.package }} test ${{ matrix.package }}
@@ -77,6 +83,7 @@ jobs:
           fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: docs-${{ matrix.package }}
       - name: Build docs
         run: pixi run -e docs-${{ matrix.package }} docs ${{ matrix.package }}
diff --git a/.github/workflows/docs-deploy.yml b/.github/workflows/docs-deploy.yml
index 515f8e71..a507ad07 100644
--- a/.github/workflows/docs-deploy.yml
+++ b/.github/workflows/docs-deploy.yml
@@ -18,6 +18,7 @@ jobs:
           fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: docs-${{ matrix.package }}
       - name: Build docs
         run: pixi run -e docs-${{ matrix.package }} docs ${{ matrix.package }}
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 71d201a9..49bfa272 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -3,7 +3,7 @@ name: Nightly Tests
 on:
   workflow_dispatch:
   schedule:
-    - cron: '30 1 * * 1-5'
+    - cron: "30 1 * * 1-5"
 
 jobs:
   test:
@@ -17,8 +17,11 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: ${{ matrix.package }}
       - name: Run tests
         run: pixi run -e ${{ matrix.package }} test ${{ matrix.package }}
@@ -34,8 +37,11 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: lb-${{ matrix.package }}
       - name: Test with lowest direct dependencies
         run: pixi run -e lb-${{ matrix.package }} test ${{ matrix.package }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8f412a68..ddb1c7fa 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -3,7 +3,7 @@ name: Release
 on:
   push:
     tags:
-      - '*/[0-9]*'
+      - "*/[0-9]*"
 
 jobs:
   determine-package:
@@ -27,6 +27,8 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
@@ -67,6 +69,7 @@ jobs:
           fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: docs-${{ needs.determine-package.outputs.package }}
       - name: Build docs
         run: pixi run -e docs-${{ needs.determine-package.outputs.package }} docs ${{ needs.determine-package.outputs.package }}
diff --git a/.github/workflows/weekly-platform.yml b/.github/workflows/weekly-platform.yml
index 3198b479..9ea5785c 100644
--- a/.github/workflows/weekly-platform.yml
+++ b/.github/workflows/weekly-platform.yml
@@ -3,7 +3,7 @@ name: Weekly Platform Tests
 on:
   workflow_dispatch:
   schedule:
-    - cron: '0 2 * * 1'
+    - cron: "0 2 * * 1"
 
 jobs:
   test:
@@ -18,8 +18,11 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
+          frozen: true
           environments: ${{ matrix.package }}
       - name: Run tests
         run: pixi run -e ${{ matrix.package }} test ${{ matrix.package }}
diff --git a/packages/essimaging/pyproject.toml b/packages/essimaging/pyproject.toml
index 81cb840b..f79e84f4 100644
--- a/packages/essimaging/pyproject.toml
+++ b/packages/essimaging/pyproject.toml
@@ -66,9 +66,9 @@ docs = [
 ]
 
 [project.urls]
-"Bug Tracker" = "https://github.com/scipp/essimaging/issues"
+"Bug Tracker" = "https://github.com/scipp/ess/issues"
 "Documentation" = "https://scipp.github.io/essimaging"
-"Source" = "https://github.com/scipp/essimaging"
+"Source" = "https://github.com/scipp/ess/tree/main/packages/essimaging"
 
 [tool.setuptools_scm]
 root = "../.."
diff --git a/packages/essreduce/pyproject.toml b/packages/essreduce/pyproject.toml
index 7f0c7600..dc8bc0a9 100644
--- a/packages/essreduce/pyproject.toml
+++ b/packages/essreduce/pyproject.toml
@@ -69,9 +69,9 @@ docs = [
 grow-nexus = "ess.reduce.scripts.grow_nexus:main"
 
 [project.urls]
-"Bug Tracker" = "https://github.com/scipp/essreduce/issues"
+"Bug Tracker" = "https://github.com/scipp/ess/issues"
 "Documentation" = "https://scipp.github.io/essreduce"
-"Source" = "https://github.com/scipp/essreduce"
+"Source" = "https://github.com/scipp/ess/tree/main/packages/essreduce"
 
 [tool.setuptools_scm]
 root = "../.."