diff --git a/.github/workflows/formatting.yml b/.github/workflows/formatting.yml
index 3bb5f22..76c201a 100644
--- a/.github/workflows/formatting.yml
+++ b/.github/workflows/formatting.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   lint:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
diff --git a/.github/workflows/validate_anaklasis.yml b/.github/workflows/validate_anaklasis.yml
index 5607277..299e4e4 100644
--- a/.github/workflows/validate_anaklasis.yml
+++ b/.github/workflows/validate_anaklasis.yml
@@ -12,7 +12,7 @@ on:
 
 jobs:
   validate_anaklasis:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
diff --git a/.github/workflows/validate_genx.yml b/.github/workflows/validate_genx.yml
index 51285f7..30ab41b 100644
--- a/.github/workflows/validate_genx.yml
+++ b/.github/workflows/validate_genx.yml
@@ -12,7 +12,7 @@ on:
 
 jobs:
   validate_genx:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
diff --git a/.github/workflows/validate_nistweb.yml b/.github/workflows/validate_nistweb.yml
index e7f8f59..5b19378 100644
--- a/.github/workflows/validate_nistweb.yml
+++ b/.github/workflows/validate_nistweb.yml
@@ -12,7 +12,7 @@ on:
 
 jobs:
   validate_nistweb:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
diff --git a/.github/workflows/validate_refl1d.yml b/.github/workflows/validate_refl1d.yml
index a63a7d6..336f64c 100644
--- a/.github/workflows/validate_refl1d.yml
+++ b/.github/workflows/validate_refl1d.yml
@@ -19,7 +19,7 @@ jobs:
 
       - uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
         with:
-          python-version: '3.9'
+          python-version: '3.10'
 
       - name: Install Python packages
         run: |
diff --git a/.github/workflows/validate_refnx.yml b/.github/workflows/validate_refnx.yml
index b58c6e6..91e9cdd 100644
--- a/.github/workflows/validate_refnx.yml
+++ b/.github/workflows/validate_refnx.yml
@@ -12,7 +12,7 @@ on:
 
 jobs:
   validate_refnx:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yml
index 67146dc..1460d4a 100644
--- a/.github/workflows/validation.yml
+++ b/.github/workflows/validation.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   lint:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2