diff --git a/dbtmetabase/metabase.py b/dbtmetabase/metabase.py
index 61c9620..96b07be 100644
--- a/dbtmetabase/metabase.py
+++ b/dbtmetabase/metabase.py
@@ -122,7 +122,12 @@ def get_database_metadata(self, uid: str) -> Mapping:
 
     def get_tables(self) -> Sequence[Mapping]:
         """Retrieves all tables for all databases."""
-        return list(self._api("get", "/api/table"))
+        return list(
+            filter(
+                lambda x: "details" in x["db"],  # exclude internal
+                self._api("get", "/api/table"),
+            )
+        )
 
     def get_collections(self, exclude_personal: bool) -> Sequence[Mapping]:
         """Retrieves all collections and optionally filters out personal collections."""
diff --git a/sandbox/docker-compose.yml b/sandbox/docker-compose.yml
index 20bb480..1281211 100644
--- a/sandbox/docker-compose.yml
+++ b/sandbox/docker-compose.yml
@@ -22,7 +22,7 @@ services:
     restart: always
 
   metabase:
-    image: metabase/metabase:v0.50.29
+    image: metabase/metabase:v0.52.8
     environment:
       - MB_SETUP_TOKEN=${MB_SETUP_TOKEN:-}
       - MB_DB_FILE=/metabase-data/metabase.db
diff --git a/sandbox/metabase.db/metabase.db.mv.db b/sandbox/metabase.db/metabase.db.mv.db
index 3d6c6c5..212048a 100644
Binary files a/sandbox/metabase.db/metabase.db.mv.db and b/sandbox/metabase.db/metabase.db.mv.db differ
diff --git a/uv.lock b/uv.lock
index 575fdb6..73e2884 100644
--- a/uv.lock
+++ b/uv.lock
@@ -17,7 +17,7 @@ dependencies = [
     { name = "parsedatetime" },
     { name = "python-slugify" },
     { name = "pytimeparse" },
-    { name = "tzdata", marker = "platform_system == 'Windows'" },
+    { name = "tzdata", marker = "sys_platform == 'win32'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/29/77/6f5df1c68bf056f5fdefc60ccc616303c6211e71cd6033c830c12735f605/agate-1.9.1.tar.gz", hash = "sha256:bc60880c2ee59636a2a80cd8603d63f995be64526abf3cbba12f00767bcd5b3d", size = 202303 }
 wheels = [
@@ -249,7 +249,7 @@ name = "click"
 version = "8.1.7"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "colorama", marker = "platform_system == 'Windows'" },
+    { name = "colorama", marker = "sys_platform == 'win32'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/96/d3/f04c7bfcf5c1862a2a5b845c6b2b360488cf47af55dfa79c98f6a6bf98b5/click-8.1.7.tar.gz", hash = "sha256:ca9853ad459e787e2192211578cc907e7594e294c7ccc834310722b41b9ca6de", size = 336121 }
 wheels = [
@@ -1392,6 +1392,7 @@ wheels = [
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     { url = "https://files.pythonhosted.org/packages/c4/fc/504d4503b2abc4570fac3ca56eb8fed5e437bf9c9ef13f36b6621db8ef00/psycopg2_binary-2.9.10-cp313-cp313-musllinux_1_2_ppc64le.whl", hash = "sha256:f0c2d907a1e102526dd2986df638343388b94c33860ff3bbe1384130828714b1", size = 2920155 },
     { url = "https://files.pythonhosted.org/packages/b2/d1/323581e9273ad2c0dbd1902f3fb50c441da86e894b6e25a73c3fda32c57e/psycopg2_binary-2.9.10-cp313-cp313-musllinux_1_2_x86_64.whl", hash = "sha256:f8157bed2f51db683f31306aa497311b560f2265998122abe1dce6428bd86567", size = 2959356 },
+    { url = "https://files.pythonhosted.org/packages/08/50/d13ea0a054189ae1bc21af1d85b6f8bb9bbc5572991055d70ad9006fe2d6/psycopg2_binary-2.9.10-cp313-cp313-win_amd64.whl", hash = "sha256:27422aa5f11fbcd9b18da48373eb67081243662f9b46e6fd07c3eb46e4535142", size = 2569224 },
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