diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3641752e..ecaae315 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,7 @@
 name: CI
 
 env:
-  PYTHON_VERSION: '3.12.0'
+  PYTHON_VERSION: '3.12.2'
 
 on:
   push:
@@ -162,7 +162,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:11
+        image: postgres:13
         env:
           POSTGRES_HOST_AUTH_METHOD: trust
         ports:
diff --git a/access_override/setup.cfg b/access_override/setup.cfg
index 4a93b395..cd0bd8da 100644
--- a/access_override/setup.cfg
+++ b/access_override/setup.cfg
@@ -9,15 +9,12 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 py_modules = indico_access_override
 zip_safe = false
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/audiovisual/setup.cfg b/audiovisual/setup.cfg
index 16fcd2b2..c971b502 100644
--- a/audiovisual/setup.cfg
+++ b/audiovisual/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/burotel/setup.cfg b/burotel/setup.cfg
index 122f3231..de81b0d9 100644
--- a/burotel/setup.cfg
+++ b/burotel/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
     pyproj>=3.0.0.post1,<4
diff --git a/cern_access/setup.cfg b/cern_access/setup.cfg
index bd5629c9..32d80c28 100644
--- a/cern_access/setup.cfg
+++ b/cern_access/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/conversion/setup.cfg b/conversion/setup.cfg
index 54a5c87e..e0771ebf 100644
--- a/conversion/setup.cfg
+++ b/conversion/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/cronjobs_cern/setup.cfg b/cronjobs_cern/setup.cfg
index 46fb75ee..9db1256e 100644
--- a/cronjobs_cern/setup.cfg
+++ b/cronjobs_cern/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/foundationsync/setup.cfg b/foundationsync/setup.cfg
index 975fc02f..441bacba 100644
--- a/foundationsync/setup.cfg
+++ b/foundationsync/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
     oracledb>=1.3.2,<2
diff --git a/outlook/setup.cfg b/outlook/setup.cfg
index 1f846de7..b44e9a89 100644
--- a/outlook/setup.cfg
+++ b/outlook/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/payment_cern/setup.cfg b/payment_cern/setup.cfg
index 7067c420..498a37ba 100644
--- a/payment_cern/setup.cfg
+++ b/payment_cern/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
     postfinancecheckout==4.0.0
diff --git a/ravem/setup.cfg b/ravem/setup.cfg
index 74e173ae..d2fc118a 100644
--- a/ravem/setup.cfg
+++ b/ravem/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
     indico-plugin-vc-zoom>=3.3.dev0,<3.4.dev0
diff --git a/room_assistance/setup.cfg b/room_assistance/setup.cfg
index bb38dc85..5aaf0fbe 100644
--- a/room_assistance/setup.cfg
+++ b/room_assistance/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/themes_cern/setup.cfg b/themes_cern/setup.cfg
index bbf94cd7..da4930b6 100644
--- a/themes_cern/setup.cfg
+++ b/themes_cern/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/themes_lcagenda/setup.cfg b/themes_lcagenda/setup.cfg
index b1cf08c6..6201f040 100644
--- a/themes_lcagenda/setup.cfg
+++ b/themes_lcagenda/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0
 
diff --git a/vc_assistance/setup.cfg b/vc_assistance/setup.cfg
index 46b97489..e4e5974a 100644
--- a/vc_assistance/setup.cfg
+++ b/vc_assistance/setup.cfg
@@ -9,16 +9,13 @@ classifiers =
     Environment :: Plugins
     Environment :: Web Environment
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
 
 [options]
 packages = find:
 zip_safe = false
 include_package_data = true
-python_requires = >=3.9.0, <3.13
+python_requires = >=3.12.2, <3.13
 install_requires =
     indico>=3.3.dev0