diff --git a/.github/workflows/test-software.eessi.io.yml b/.github/workflows/test-software.eessi.io.yml
index 8cfb023bc6..06c02c8834 100644
--- a/.github/workflows/test-software.eessi.io.yml
+++ b/.github/workflows/test-software.eessi.io.yml
@@ -5,7 +5,7 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   check_missing:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/test_eessi_container_script.yml b/.github/workflows/test_eessi_container_script.yml
index 32120d0087..d31feb23fe 100644
--- a/.github/workflows/test_eessi_container_script.yml
+++ b/.github/workflows/test_eessi_container_script.yml
@@ -5,7 +5,7 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   eessi_container_script:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/test_licenses.yml b/.github/workflows/test_licenses.yml
index 3b9675d523..6b6387d47d 100644
--- a/.github/workflows/test_licenses.yml
+++ b/.github/workflows/test_licenses.yml
@@ -5,7 +5,7 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
         - name: Check out software-layer repository
           uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index faa7eb82ff..8249e50d9b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,10 +5,10 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.6, 3.7, 3.8, 3.9, '3.10']
+        python: [3.7, 3.8, 3.9, '3.10']
       fail-fast: false
     steps:
     - name: checkout
diff --git a/.github/workflows/tests_archdetect.yml b/.github/workflows/tests_archdetect.yml
index bee348995d..4f5d3d174d 100644
--- a/.github/workflows/tests_archdetect.yml
+++ b/.github/workflows/tests_archdetect.yml
@@ -5,7 +5,7 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         proc_cpuinfo:
diff --git a/.github/workflows/tests_init.yml b/.github/workflows/tests_init.yml
index 053acb9730..6c356a9184 100644
--- a/.github/workflows/tests_init.yml
+++ b/.github/workflows/tests_init.yml
@@ -5,10 +5,10 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.6, 3.7, 3.8, 3.9, '3.10']
+        python: [3.7, 3.8, 3.9, '3.10']
       fail-fast: false
     steps:
     - name: checkout
diff --git a/.github/workflows/tests_readme.yml b/.github/workflows/tests_readme.yml
index efdb796e5e..76f46a8abe 100644
--- a/.github/workflows/tests_readme.yml
+++ b/.github/workflows/tests_readme.yml
@@ -14,7 +14,7 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
         - name: Check out software-layer repository
           uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
diff --git a/.github/workflows/tests_scripts.yml b/.github/workflows/tests_scripts.yml
index 76d19d29fe..6413fcf86f 100644
--- a/.github/workflows/tests_scripts.yml
+++ b/.github/workflows/tests_scripts.yml
@@ -28,7 +28,7 @@ permissions:
   contents: read # to fetch code (actions/checkout)
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - name: checkout
       uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1