diff --git a/cosmos/dbt/graph.py b/cosmos/dbt/graph.py
index fcfff070b8..7c34830a19 100644
--- a/cosmos/dbt/graph.py
+++ b/cosmos/dbt/graph.py
@@ -201,6 +201,13 @@ def project_path(self) -> Path:
             )
         return path.absolute()
 
+    def _add_vars_arg(self, cmd_args: list[str]) -> None:
+        """
+        Change args list in-place so they include dbt vars, if they are set.
+        """
+        if self.project.dbt_vars:
+            cmd_args.extend(["--vars", json.dumps(self.project.dbt_vars, sort_keys=True)])
+
     @cached_property
     def dbt_ls_args(self) -> list[str]:
         """
@@ -213,8 +220,7 @@ def dbt_ls_args(self) -> list[str]:
         if self.render_config.select:
             ls_args.extend(["--select", *self.render_config.select])
 
-        if self.project.dbt_vars:
-            ls_args.extend(["--vars", json.dumps(self.project.dbt_vars, sort_keys=True)])
+        self._add_vars_arg(ls_args)
 
         if self.render_config.selector:
             ls_args.extend(["--selector", self.render_config.selector])
@@ -408,6 +414,16 @@ def should_use_partial_parse_cache(self) -> bool:
         """Identify if Cosmos should use/store dbt partial parse cache or not."""
         return settings.enable_cache_partial_parse and settings.enable_cache and bool(self.cache_dir)
 
+    def run_dbt_deps(self, dbt_cmd: str, dbt_project_path: Path, env: dict[str, str]) -> None:
+        """
+        Given the dbt command path and the dbt project path, build and run the dbt deps command.
+        """
+        deps_command = [dbt_cmd, "deps"]
+        deps_command.extend(self.local_flags)
+        self._add_vars_arg(deps_command)
+        stdout = run_command(deps_command, dbt_project_path, env)
+        logger.debug("dbt deps output: %s", stdout)
+
     def load_via_dbt_ls_without_cache(self) -> None:
         """
         This is the most accurate way of loading `dbt` projects and filtering them out, since it uses the `dbt` command
@@ -461,16 +477,14 @@ def load_via_dbt_ls_without_cache(self) -> None:
                     "--target",
                     self.profile_config.target_name,
                 ]
+
                 self.log_dir = Path(env.get(DBT_LOG_PATH_ENVVAR) or tmpdir_path / DBT_LOG_DIR_NAME)
                 self.target_dir = Path(env.get(DBT_TARGET_PATH_ENVVAR) or tmpdir_path / DBT_TARGET_DIR_NAME)
                 env[DBT_LOG_PATH_ENVVAR] = str(self.log_dir)
                 env[DBT_TARGET_PATH_ENVVAR] = str(self.target_dir)
 
                 if self.render_config.dbt_deps and has_non_empty_dependencies_file(self.project_path):
-                    deps_command = [dbt_cmd, "deps"]
-                    deps_command.extend(self.local_flags)
-                    stdout = run_command(deps_command, tmpdir_path, env)
-                    logger.debug("dbt deps output: %s", stdout)
+                    self.run_dbt_deps(dbt_cmd, tmpdir_path, env)
 
                 nodes = self.run_dbt_ls(dbt_cmd, self.project_path, tmpdir_path, env)
 
diff --git a/tests/dbt/test_graph.py b/tests/dbt/test_graph.py
index e53d5dd710..7483c768cc 100644
--- a/tests/dbt/test_graph.py
+++ b/tests/dbt/test_graph.py
@@ -1381,6 +1381,15 @@ def test_dbt_ls_cache_key_args_sorts_envvars():
     assert graph.dbt_ls_cache_key_args == ['{"5": "May", "11": "November", "12": "December"}']
 
 
+@patch("cosmos.dbt.graph.run_command")
+def test_run_dbt_deps(run_command_mock):
+    project_config = ProjectConfig(dbt_vars={"var-key": "var-value"})
+    graph = DbtGraph(project=project_config)
+    graph.local_flags = []
+    graph.run_dbt_deps("dbt", "/some/path", {})
+    run_command_mock.assert_called_with(["dbt", "deps", "--vars", '{"var-key": "var-value"}'], "/some/path", {})
+
+
 @pytest.fixture()
 def airflow_variable():
     key = "cosmos_cache__undefined"
@@ -1413,7 +1422,7 @@ def test_save_dbt_ls_cache(mock_variable_set, mock_datetime, tmp_dbt_project_dir
     hash_dir, hash_args = version.split(",")
     assert hash_args == "d41d8cd98f00b204e9800998ecf8427e"
     if sys.platform == "darwin":
-        assert hash_dir == "465fc0735d8bef08a0d375b2315069bb"
+        assert hash_dir == "18b97e2bff2684161f71db817f1f50e2"
     else:
         assert hash_dir == "6c662da10b64a8390c469c884af88321"