diff --git a/dep_freshness/_tables.py b/dep_freshness/_tables.py
index 3eabe3e..ed000ff 100644
--- a/dep_freshness/_tables.py
+++ b/dep_freshness/_tables.py
@@ -93,7 +93,6 @@ MANIFEST_GLOBS: Final = (
     ".fvmrc",
     ".nvmrc",
     ".python-version",
-    "libs.versions.toml",
     "gradle-wrapper.properties",
 )
 REQUIREMENTS_PATTERN: Final = r"^requirements.*\.txt$"
diff --git a/dep_freshness/discover.py b/dep_freshness/discover.py
index 3bf16b3..0ce796b 100644
--- a/dep_freshness/discover.py
+++ b/dep_freshness/discover.py
@@ -36,7 +36,6 @@ _BY_NAME = {
     ".fvmrc": fvm.parse,
     ".nvmrc": javascript.parse_nvmrc,
     ".python-version": python.parse_python_version,
-    gradle.CATALOG_NAME: gradle.parse_catalog,
     gradle.WRAPPER_NAME: gradle.parse_wrapper,
 }
 
@@ -46,6 +45,7 @@ def is_manifest(path: Path) -> bool:
         path.name in MANIFEST_GLOBS
         or bool(_REQUIREMENTS.match(path.name))
         or workflow.is_workflow(path)
+        or gradle.is_catalog(path)
     )
 
 
@@ -58,6 +58,8 @@ def parse_manifest(path: Path) -> list[Dep]:
         return python.parse_requirements(path)
     if workflow.is_workflow(path):
         return workflow.parse(path)
+    if gradle.is_catalog(path):
+        return gradle.parse_catalog(path)
     return []
 
 
@@ -68,7 +70,9 @@ def _git_ignored(paths: list[Path], root: Path) -> set[Path]:
         result = subprocess.run(
             ["git", "-C", str(root), "check-ignore", "--stdin"],
             input="\n".join(str(p) for p in paths),
-            capture_output=True, text=True, check=False,
+            capture_output=True,
+            text=True,
+            check=False,
         )
     except OSError:
         return set()
diff --git a/dep_freshness/parsers/gradle.py b/dep_freshness/parsers/gradle.py
index 1bba9cf..ce3fb0a 100644
--- a/dep_freshness/parsers/gradle.py
+++ b/dep_freshness/parsers/gradle.py
@@ -2,6 +2,8 @@
 
 The version catalog is the one place a Gradle build should declare versions,
 which makes it a manifest the gate can read without evaluating Kotlin DSL.
+A build may have several (`settings.gradle.kts` can `from(files(...))` any
+`*.versions.toml`; TachiyomiSY has three), so the suffix is what is matched.
 Three shapes appear in `[libraries]` and `[plugins]`:
 
     foo = "group:artifact:1.2.3"                         # inline string
@@ -36,7 +38,7 @@ from dep_freshness.models import Dep
 from dep_freshness.parsers._lines import index
 from dep_freshness.versions import exact_pin
 
-CATALOG_NAME = "libs.versions.toml"
+CATALOG_SUFFIX = ".versions.toml"  # libs.versions.toml, but also sy.versions.toml
 WRAPPER_NAME = "gradle-wrapper.properties"
 _DISTRIBUTION = re.compile(
     r"gradle-(?P<version>\d+(?:\.\d+)*(?:-[0-9A-Za-z.-]+?)?)-(?:bin|all)\.zip"
@@ -137,3 +139,8 @@ def parse_wrapper(path: Path) -> list[Dep]:
             )
         ]
     return []
+
+
+def is_catalog(path: Path) -> bool:
+    """True for `libs.versions.toml` and any sibling catalog a build declares."""
+    return path.name.endswith(CATALOG_SUFFIX)
diff --git a/dep_freshness/templates/precommit-hook.yaml b/dep_freshness/templates/precommit-hook.yaml
index c7a5457..dad7a93 100644
--- a/dep_freshness/templates/precommit-hook.yaml
+++ b/dep_freshness/templates/precommit-hook.yaml
@@ -18,5 +18,5 @@
           |package\.json|package-lock\.json|pnpm-lock\.yaml
           |Cargo\.(toml|lock)|go\.(mod|sum)
           |\.fvmrc|\.nvmrc|\.python-version
-          |libs\.versions\.toml|gradle-wrapper\.properties
+          |\.versions\.toml|gradle-wrapper\.properties
           |\.github/workflows/.*\.ya?ml)$
diff --git a/dep_freshness/templates/workflow.yml b/dep_freshness/templates/workflow.yml
index 856c6e7..bc145ee 100644
--- a/dep_freshness/templates/workflow.yml
+++ b/dep_freshness/templates/workflow.yml
@@ -57,7 +57,7 @@ jobs:
           key:
             dep-freshness-${{ hashFiles('**/pubspec.yaml', '**/pyproject.toml',
             '**/requirements*.txt', '**/package.json', '**/Cargo.toml', '**/go.mod',
-            '**/libs.versions.toml') }}
+            '**/*.versions.toml') }}
           restore-keys: dep-freshness-
 
       - name: Every dependency is on newest stable
diff --git a/dep_freshness/tests/test_discover.py b/dep_freshness/tests/test_discover.py
index 2985755..ebbf7c3 100644
--- a/dep_freshness/tests/test_discover.py
+++ b/dep_freshness/tests/test_discover.py
@@ -15,7 +15,8 @@ PUBSPEC = "name: demo\ndependencies:\n  http: 1.6.0\n"
 @pytest.mark.parametrize("name", [
     "pubspec.yaml", "pyproject.toml", "package.json", "Cargo.toml", "go.mod",
     ".fvmrc", ".nvmrc", ".python-version", "requirements.txt",
-    "requirements-dev.txt", "libs.versions.toml", "gradle-wrapper.properties",
+    "requirements-dev.txt", "libs.versions.toml", "sy.versions.toml",
+    "gradle-wrapper.properties",
 ])
 def test_manifest_names_are_recognised(name):
     assert is_manifest(Path(name))