diff --git a/conda-environment.yml b/conda-environment.yml
index 66f401673..55b9edf87 100644
--- a/conda-environment.yml
+++ b/conda-environment.yml
@@ -22,7 +22,7 @@ dependencies:
   - dask
   - pyproj >=2.5
   - shapely >=2.0
-  - jsonschema
+  - jsonschema <4.18
   - lark
   - netcdf4
   - numpy
diff --git a/datacube/drivers/postgis/_core.py b/datacube/drivers/postgis/_core.py
index d7a8c81e8..9a6dfa864 100644
--- a/datacube/drivers/postgis/_core.py
+++ b/datacube/drivers/postgis/_core.py
@@ -11,6 +11,7 @@
 from sqlalchemy import MetaData, inspect, text
 from sqlalchemy.engine import Engine
 from sqlalchemy.schema import CreateSchema
+from sqlalchemy.sql.ddl import DropSchema
 
 from datacube.drivers.postgis.sql import (INSTALL_TRIGGER_SQL_TEMPLATE,
                                           SCHEMA_NAME, TYPES_INIT_SQL,
@@ -220,7 +221,9 @@ def has_schema(engine):
 
 
 def drop_db(connection):
-    connection.execute(text(f'drop schema if exists {SCHEMA_NAME} cascade'))
+    # if_exists parameter seems to not be working in SQLA1.4?
+    if has_schema(connection.engine):
+        connection.execute(DropSchema(SCHEMA_NAME, cascade=True, if_exists=True))
 
 
 def to_pg_role(role):
diff --git a/datacube/drivers/postgres/_core.py b/datacube/drivers/postgres/_core.py
index 7971019b6..68ffc799c 100644
--- a/datacube/drivers/postgres/_core.py
+++ b/datacube/drivers/postgres/_core.py
@@ -17,7 +17,7 @@
                                            pg_column_exists)
 from sqlalchemy import MetaData, inspect, text
 from sqlalchemy.engine import Engine
-from sqlalchemy.schema import CreateSchema
+from sqlalchemy.schema import CreateSchema, DropSchema
 
 
 USER_ROLES = ('agdc_user', 'agdc_ingest', 'agdc_manage', 'agdc_admin')
@@ -233,7 +233,9 @@ def has_schema(engine):
 
 
 def drop_db(connection):
-    connection.execute(text(f'drop schema if exists {SCHEMA_NAME} cascade;'))
+    # if_exists parameter seems to not be working in SQLA1.4?
+    if has_schema(connection.engine):
+        connection.execute(DropSchema(SCHEMA_NAME, cascade=True, if_exists=True))
 
 
 def to_pg_role(role):
diff --git a/docker/constraints.in b/docker/constraints.in
index d10366cda..fc561ce98 100644
--- a/docker/constraints.in
+++ b/docker/constraints.in
@@ -14,7 +14,7 @@ dask>=2021.10.1
 distributed>=2021.10.0
 fiona
 geoalchemy2
-jsonschema
+jsonschema<4.18
 # Was lark-parser>=0.6.7
 lark
 matplotlib
diff --git a/docs/about/whats_new.rst b/docs/about/whats_new.rst
index 4c09aa578..4007cfbd8 100644
--- a/docs/about/whats_new.rst
+++ b/docs/about/whats_new.rst
@@ -27,6 +27,7 @@ v1.8.next
 - Improve error message for mismatch between dataset metadata and product signature (:pull:`1472`)
 - Mark ``--confirm-ignore-lineage``, ``--auto-add-lineage``, and ``--verify-lineage`` as deprecated or to be deprecated (:pull:`1472`)
 - Default delta values in ``archive_less_mature`` and ``find_less_mature`` (:pull:`1472`)
+- Fix SQLAlchemy calls and pin jsonschema version to suppress deprecation warnings (:pull:`1476`)
 
 v1.8.15 (11th July 2023)
 ========================
diff --git a/setup.py b/setup.py
index 9ed64dc39..b50617711 100755
--- a/setup.py
+++ b/setup.py
@@ -98,7 +98,7 @@
         'cloudpickle>=0.4',
         'dask[array]',
         'distributed',
-        'jsonschema',
+        'jsonschema<4.18',
         'numpy',
         'psycopg2',
         'lark',
@@ -114,6 +114,7 @@
         'packaging',
         'odc-geo',
         'deprecat',
+        'importlib_metadata>3.5;python_version<"3.10"',
     ],
     extras_require=extras_require,
     tests_require=tests_require,
diff --git a/wordlist.txt b/wordlist.txt
index 4cd2ffb99..cdc5f2940 100644
--- a/wordlist.txt
+++ b/wordlist.txt
@@ -223,6 +223,7 @@ jfEZEOkxRXgNsAsHEC
 jpg
 JSON
 jsonify
+jsonschema
 Jupyter
 jupyter
 JupyterLab