diff --git a/dbt_meshify/storage/dbt_project_editors.py b/dbt_meshify/storage/dbt_project_editors.py
index 06bfa23..ecea8ba 100644
--- a/dbt_meshify/storage/dbt_project_editors.py
+++ b/dbt_meshify/storage/dbt_project_editors.py
@@ -94,7 +94,15 @@ def write_project_file(self) -> FileChange:
         # this one appears in the project yml, but i don't think it should be written
         contents.pop("query-comment")
         contents = filter_empty_dict_items(contents)
-        # project_file_path = self.target_directory / Path("dbt_project.yml")
+
+        # Serialize the `require-dbt-version` field into a string. This happens because dbt is expecting a list of
+        # strings, but also accepts a singular string value, too. We can handle the latter case by checking the length
+        # of each item in the list. If they're all one character long, then we're really working with a single version
+        # string.
+        if "require-dbt-version" in contents:
+            if max([len(version) for version in contents["require-dbt-version"]]) == 1:
+                contents["require-dbt-version"] = "".join(contents["require-dbt-version"])
+
         return FileChange(
             operation=Operation.Add,
             entity_type=EntityType.Code,
diff --git a/test-projects/split/split_proj/dbt_project.yml b/test-projects/split/split_proj/dbt_project.yml
index 41196c4..da86d0a 100644
--- a/test-projects/split/split_proj/dbt_project.yml
+++ b/test-projects/split/split_proj/dbt_project.yml
@@ -1,13 +1,12 @@
-
 # Name your project! Project names should contain only lowercase characters
 # and underscores. A good package name should reflect your organization's
 # name or the intended use of these models
-name: 'split_proj'
-version: '1.0.0'
+name: "split_proj"
+version: "1.0.0"
 config-version: 2
 
 # This setting configures which "profile" dbt uses for this project.
-profile: 'split_proj'
+profile: "split_proj"
 
 # These configurations specify where dbt should look for different types of files.
 # The `model-paths` config, for example, states that models in this project can be
@@ -20,10 +19,11 @@ seed-paths: ["seeds", "jaffle_data"]
 macro-paths: ["macros"]
 snapshot-paths: ["snapshots"]
 
-clean-targets:         # directories to be removed by `dbt clean`
+clean-targets: # directories to be removed by `dbt clean`
   - "target"
   - "dbt_packages"
 
+require-dbt-version: [">=1.6.0", "<1.7.0"]
 
 vars:
   truncate_timespan_to: "{{ current_timestamp() }}"
@@ -43,10 +43,9 @@ models:
 
 seeds:
   +schema: jaffle_raw
-
 # the below config for seeds is only relevant when seeding the project for the fist time with the raw jaffle data
 # pont the seed path to the jaffle data directory and make sure this is uncommented
 
 # seeds:
 #   split_proj:
-#     +schema: jaffle_raw
\ No newline at end of file
+#     +schema: jaffle_raw