diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1830e7881c..5540733131 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.12.8
+    rev: v0.12.9
     hooks:
       # Run the linter.
       - id: ruff
diff --git a/esphome/core/__init__.py b/esphome/core/__init__.py
index 9df5da1c78..8a9630735e 100644
--- a/esphome/core/__init__.py
+++ b/esphome/core/__init__.py
@@ -803,6 +803,10 @@ class EsphomeCore:
             raise TypeError(
                 f"Library {library} must be instance of Library, not {type(library)}"
             )
+
+        if not library.name:
+            raise ValueError(f"The library for {library.repository} must have a name")
+
         short_name = (
             library.name if "/" not in library.name else library.name.split("/")[-1]
         )
diff --git a/requirements_test.txt b/requirements_test.txt
index 9ad4591a04..f0a16fd7f3 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,6 +1,6 @@
 pylint==3.3.8
 flake8==7.3.0  # also change in .pre-commit-config.yaml when updating
-ruff==0.12.8  # also change in .pre-commit-config.yaml when updating
+ruff==0.12.9  # also change in .pre-commit-config.yaml when updating
 pyupgrade==3.20.0  # also change in .pre-commit-config.yaml when updating
 pre-commit