diff --git a/tox.ini b/tox.ini
index 50e79ce7..93d870d2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -299,7 +299,9 @@ commands =
 
 [testenv:integration_postgres]
 changedir = integration_test_project
-deps = dbt-postgres~=1.8.0
+deps =
+    dbt-core~=1.8.0
+    dbt-postgres~=1.8.0
 commands =
     dbt clean
     dbt deps
@@ -347,7 +349,9 @@ commands =
 
 [testenv:integration_postgres_1_8_0]
 changedir = integration_test_project
-deps = dbt-postgres~=1.7.0
+deps =
+    dbt-core~=1.8.0
+    dbt-postgres~=1.8.0
 commands =
     dbt clean
     dbt deps