diff --git a/dbt/adapters/databricks/__version__.py b/dbt/adapters/databricks/__version__.py
index c91f06f44..18ce0d094 100644
--- a/dbt/adapters/databricks/__version__.py
+++ b/dbt/adapters/databricks/__version__.py
@@ -1 +1 @@
-version: str = "1.4.1"
+version: str = "v1.5.0b1"
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 6567167a0..594cdbc20 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -22,6 +22,6 @@ pytz
 tox>=3.2.0
 types-requests
 
-dbt-spark==1.4.*
-dbt-core==1.4.*
-dbt-tests-adapter==1.4.*
\ No newline at end of file
+dbt-spark==1.5.0b4
+# dbt-core==1.4.*
+dbt-tests-adapter==1.5.0rc1
diff --git a/requirements.txt b/requirements.txt
index 726694017..5c71c9e5f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 databricks-sql-connector>=2.5.0
-dbt-spark==1.4.*
+
+dbt-spark==1.5.0b4
diff --git a/setup.py b/setup.py
index e7288e9aa..700d310d1 100644
--- a/setup.py
+++ b/setup.py
@@ -40,7 +40,7 @@ def _get_plugin_version():
 
 package_name = "dbt-databricks"
 package_version = _get_plugin_version()
-dbt_spark_version = "1.4.1"
+dbt_spark_version = "1.5.0b4"
 description = """The Databricks adapter plugin for dbt"""
 
 setup(
diff --git a/tests/integration/base.py b/tests/integration/base.py
index 12ac70c92..fb9e68613 100644
--- a/tests/integration/base.py
+++ b/tests/integration/base.py
@@ -13,8 +13,9 @@
 import yaml
 from unittest.mock import patch
 
-import dbt.main as dbt
-from dbt import flags
+from argparse import Namespace
+from dbt.cli.main import dbtRunner
+import dbt.flags as flags
 from dbt.deprecations import reset_deprecations
 from dbt.adapters.factory import get_adapter, reset_adapters, register_adapter
 from dbt.clients.jinja import template_cache
@@ -87,6 +88,7 @@ def __init__(self, kwargs):
         self.profiles_dir = None
         self.project_dir = None
         self.__dict__.update(kwargs)
+        self.threads = None
 
 
 def _profile_from_test_name(test_name):
@@ -218,14 +220,21 @@ def _generate_test_root_dir(self):
         return normalize(tempfile.mkdtemp(prefix="dbt-int-test-"))
 
     def setUp(self):
-        self.dbt_core_install_root = os.path.dirname(dbt.__file__)
         log_manager.reset_handlers()
         self.initial_dir = INITIAL_ROOT
         os.chdir(self.initial_dir)
         # before we go anywhere, collect the initial path info
         self._logs_dir = os.path.join(self.initial_dir, "logs", self.prefix)
-        setup_event_logger(self._logs_dir)
-        _really_makedirs(self._logs_dir)
+        args = Namespace(
+            profiles_dir=".",
+            project_dir=".",
+            target=None,
+            profile=None,
+            threads=None,
+        )
+        flags.set_from_args(args, {})
+        flags.LOG_PATH = self._logs_dir
+        setup_event_logger(flags.get_flags())
         self.test_original_source_path = _pytest_get_test_root()
         self.test_root_dir = self._generate_test_root_dir()
 
@@ -427,10 +436,10 @@ def run_dbt_and_check(self, args=None, profiles_dir=True):
 
         if profiles_dir:
             final_args.extend(["--profiles-dir", self.test_root_dir])
-        final_args.append("--log-cache-events")
 
         logger.info("Invoking dbt with {}".format(final_args))
-        return dbt.handle_and_check(final_args)
+        res = dbtRunner().invoke(args, log_cache_events=True, log_path=self._logs_dir)
+        return res.result, res.success
 
     def run_sql_file(self, path, kwargs=None):
         with open(path, "r") as f:
diff --git a/tox.ini b/tox.ini
index 17e8d083d..b3ac71857 100644
--- a/tox.ini
+++ b/tox.ini
@@ -37,8 +37,8 @@ deps =
 [testenv:integration-databricks-cluster]
 basepython = python3
 commands =
-  /bin/bash -c '{envpython} -m pytest -v --profile databricks_cluster -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
   /bin/bash -c '{envpython} -m pytest -v -m profile_databricks_cluster -n4 tests/integration/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
+  /bin/bash -c '{envpython} -m pytest -v --profile databricks_cluster -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
 passenv =
   DBT_*
   PYTEST_ADDOPTS
@@ -50,8 +50,8 @@ allowlist_externals = /bin/bash
 [testenv:integration-databricks-uc-cluster]
 basepython = python3
 commands =
-  /bin/bash -c '{envpython} -m pytest -v --profile databricks_uc_cluster -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
   /bin/bash -c '{envpython} -m pytest -v -m profile_databricks_uc_cluster -n4 tests/integration/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
+  /bin/bash -c '{envpython} -m pytest -v --profile databricks_uc_cluster -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
 passenv =
   DBT_*
   PYTEST_ADDOPTS
@@ -63,8 +63,8 @@ allowlist_externals = /bin/bash
 [testenv:integration-databricks-sql-endpoint]
 basepython = python3
 commands =
-  /bin/bash -c '{envpython} -m pytest -v --profile databricks_sql_endpoint -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
   /bin/bash -c '{envpython} -m pytest -v -m profile_databricks_sql_endpoint -n4 tests/integration/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
+  /bin/bash -c '{envpython} -m pytest -v --profile databricks_sql_endpoint -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
 passenv =
   DBT_*
   PYTEST_ADDOPTS
@@ -76,8 +76,8 @@ allowlist_externals = /bin/bash
 [testenv:integration-databricks-uc-sql-endpoint]
 basepython = python3
 commands =
-  /bin/bash -c '{envpython} -m pytest -v --profile databricks_uc_sql_endpoint -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
   /bin/bash -c '{envpython} -m pytest -v -m profile_databricks_uc_sql_endpoint -n4 tests/integration/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
+  /bin/bash -c '{envpython} -m pytest -v --profile databricks_uc_sql_endpoint -n4 tests/functional/adapter/* {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
 passenv =
   DBT_*
   PYTEST_ADDOPTS