diff --git a/CHANGES.rst b/CHANGES.rst
index b051f39ff..1fc5709c1 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -12,7 +12,12 @@ Changes
 
 Changes:
 --------
-- No change.
+- Add Python 3.12 support (fixes `#587 <https://github.com/crim-ca/weaver/issues/587>`_).
+
+  * Depends on ``PasteDeploy==3.1.0``
+    (relates to `Pylons/pastedeploy#43 <https://github.com/Pylons/pastedeploy/pull/43>`_).
+  * Depends on ``pyramid_celery==5.0.0a`` [`crim-ca/pyramid_celery <https://github.com/crim-ca/pyramid_celery>`_ fork]
+    (relates to `sontek/pyramid_celery#102 <https://github.com/sontek/pyramid_celery/pull/102>`_).
 
 Fixes:
 ------
diff --git a/Makefile b/Makefile
index bc055c16e..aafb1b14d 100644
--- a/Makefile
+++ b/Makefile
@@ -37,7 +37,7 @@ else
   else
     CONDA_BIN_DIR ?= $(CONDA_HOME)/bin
   endif
-  CONDA_BIN := $(CONDA_BIN_DIR)/conda
+  CONDA_BIN ?= $(CONDA_BIN_DIR)/conda
   CONDA_ENV_REAL_TARGET_PATH := $(realpath $(CONDA_ENV_PATH))
   CONDA_ENV_REAL_ACTIVE_PATH := $(realpath ${CONDA_PREFIX})
 
diff --git a/Makefile.config.example b/Makefile.config.example
index ceeb741d0..cbdfb13e2 100644
--- a/Makefile.config.example
+++ b/Makefile.config.example
@@ -1,6 +1,7 @@
 CONDA_HOME ?= /opt/conda
 CONDA_ENV ?= weaver
 CONDA_ENVS_DIR ?= /opt/conda/envs
+CONDA_BIN ?= $(CONDA_HOME)/bin/conda
 
 HOSTNAME ?= localhost
 HTTP_PORT ?= 8094
diff --git a/requirements.txt b/requirements.txt
index eb8d97150..335520899 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,6 +61,7 @@ numpy>=1.22.2
 # esgf-compute-api (cwt) needs oauthlib but doesn't add it in their requirements
 oauthlib
 owslib==0.28.1
+PasteDeploy>=3.1.0; python_version >= "3.12"
 psutil
 # FIXME: pymongo>=4 breaks with kombu corresponding to pinned Celery
 # - https://github.com/crim-ca/weaver/issues/386
@@ -69,7 +70,9 @@ psutil
 pymongo>=4  # either (pymongo>=4, kombu>=5.3.0b2) or (pymongo<4, celery<5.2)
 pyramid>=1.7.3
 pyramid_beaker>=0.8
-pyramid_celery>=4.0.0   # required for celery>=5
+# see https://github.com/sontek/pyramid_celery/pull/102 to fix Python 3.12 support and other improvements
+#pyramid_celery>=4.0.0   # required for celery>=5
+pyramid_celery @ git+https://github.com/crim-ca/pyramid_celery.git@5.0.0a
 pyramid_mako
 python-dateutil
 pyramid_rewrite
diff --git a/setup.py b/setup.py
index 582f34a65..a4251ea17 100644
--- a/setup.py
+++ b/setup.py
@@ -82,18 +82,32 @@ def _parse_requirements(file_path, requirements, links):
     long_description=LONG_DESCRIPTION,
     long_description_content_type="text/x-rst",
     classifiers=[
+        "Development Status :: 4 - Beta",
+        "Environment :: Web Environment",
+        "Framework :: Celery",
+        "Framework :: Paste",
+        "Framework :: Pyramid",
+        "Intended Audience :: Developers",
+        "Intended Audience :: Information Technology",
+        "Intended Audience :: Science/Research",
+        __meta__.__license_classifier__,
         "Natural Language :: English",
+        "Operating System :: POSIX",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
-        "Framework :: Pyramid",
+        "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3 :: Only",
         "Topic :: Internet :: WWW/HTTP",
+        "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
         "Topic :: Internet :: WWW/HTTP :: WSGI :: Application",
+        "Topic :: Scientific/Engineering :: Atmospheric Science",
         "Topic :: Scientific/Engineering :: GIS",
-        "Development Status :: 4 - Beta",
+        "Topic :: Scientific/Engineering :: Interface Engine/Protocol Translator",
+        "Topic :: System :: Distributed Computing",
     ],
     author=__meta__.__author__,
     author_email=", ".join(__meta__.__emails__),
diff --git a/weaver/__meta__.py b/weaver/__meta__.py
index 8a942c6ed..97256aca9 100644
--- a/weaver/__meta__.py
+++ b/weaver/__meta__.py
@@ -7,6 +7,7 @@
 __documentation_url__ = "https://pavics-weaver.readthedocs.io/"
 __license_url__ = "https://raw.githubusercontent.com/crim-ca/weaver/master/LICENSE.txt"
 __license_type__ = "Apache License 2.0"
+__license_classifier__ = "License :: OSI Approved :: Apache Software License"
 __license_short__ = "2020, CRIM"
 __license_long__ = f"{__title__} {__license_type__}, Copyright \u24B8 {__license_short__}"
 __authors__ = [