diff --git a/dbt/adapters/spark/impl.py b/dbt/adapters/spark/impl.py
index feae34129..16c3a3cb7 100644
--- a/dbt/adapters/spark/impl.py
+++ b/dbt/adapters/spark/impl.py
@@ -120,6 +120,10 @@ def convert_number_type(cls, agate_table: agate.Table, col_idx: int) -> str:
         decimals = agate_table.aggregate(agate.MaxPrecision(col_idx))
         return "double" if decimals else "bigint"
 
+    @classmethod
+    def convert_integer_type(cls, agate_table: agate.Table, col_idx: int) -> str:
+        return "bigint"
+
     @classmethod
     def convert_date_type(cls, agate_table: agate.Table, col_idx: int) -> str:
         return "date"
diff --git a/dev-requirements.txt b/dev-requirements.txt
index a6b3dca0e..2abcfa1da 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,7 +1,7 @@
 # install latest changes in dbt-core
 # TODO: how to automate switching from develop to version branches?
-git+https://github.com/dbt-labs/dbt-core.git#egg=dbt-core&subdirectory=core
-git+https://github.com/dbt-labs/dbt-core.git#egg=dbt-tests-adapter&subdirectory=tests/adapter
+git+https://github.com/dbt-labs/dbt-core.git@8895-agate_integer_conversion#egg=dbt-core&subdirectory=core
+git+https://github.com/dbt-labs/dbt-core.git@8895-agate_integer_conversion#egg=dbt-tests-adapter&subdirectory=tests/adapter
 
 # if version 1.x or greater -> pin to major version
 # if version 0.x -> pin to minor
diff --git a/tests/functional/adapter/test_simple_seed.py b/tests/functional/adapter/test_simple_seed.py
new file mode 100644
index 000000000..c610967c6
--- /dev/null
+++ b/tests/functional/adapter/test_simple_seed.py
@@ -0,0 +1,5 @@
+from dbt.tests.adapter.simple_seed.test_seed import BaseTestEmptySeed
+
+
+class TestBigQueryEmptySeed(BaseTestEmptySeed):
+    pass