diff --git a/package_linter.py b/package_linter.py
index e18773f..c771a43 100755
--- a/package_linter.py
+++ b/package_linter.py
@@ -333,6 +333,27 @@ def manifest_v2_schema():
     return urlopen("https://raw.githubusercontent.com/YunoHost/apps/master/schemas/manifest.v2.schema.json")["content"]
 
 
+@cache_file(".tests.v1.schema.json", 3600)
+def tests_v1_schema():
+    return urlopen("https://raw.githubusercontent.com/YunoHost/apps/master/schemas/tests.v1.schema.json")["content"]
+
+
+@cache_file(".config_panel.v1.schema.json", 3600)
+def config_panel_v1_schema():
+    return urlopen("https://raw.githubusercontent.com/YunoHost/apps/master/schemas/config_panel.v1.schema.json")["content"]
+
+
+def validate_schema(name: str, schema, data):
+    v = jsonschema.Draft7Validator(schema)
+    
+    for error in v.iter_errors(data):
+        try:
+            error_path = " > ".join(error.path)
+        except:
+            error_path = str(error.path)
+
+        yield Info(f"Error validating {name} using schema: in key {error_path}\n       {error.message}")
+
 tests = {}
 tests_reports = {
     "success": [],
@@ -761,6 +782,8 @@ class App(TestSuite):
                     "The config panel is set to version 1.x, but the config script is apparently still using some old code from 0.1 such as '$YNH_CONFIG_STUFF' or 'yunohost app action'"
                 )
 
+            validate_schema("config_panel", config_panel_v1_schema(), toml.load(app.path + "config_panel.toml"))
+
     @test()
     def badges_in_readme(app):
 
@@ -1158,7 +1181,7 @@ class Configurations(TestSuite):
     ############################
 
     @test()
-    def tests_toml_exists(self):
+    def tests_toml(self):
 
         app = self.app
 
@@ -1174,6 +1197,8 @@ class Configurations(TestSuite):
                 yield Error(
                     "The 'check_process' file that interfaces with the app CI has now been replaced with 'tests.toml' format and is now mandatory for apps v2."
                 )
+            else:
+                validate_schema("tests.toml", tests_v1_schema(), toml.load(app.path + "tests.toml"))
 
     @test()
     def check_process_syntax(self):
@@ -2230,24 +2255,9 @@ class Manifest(TestSuite):
 
         @test()
         def manifest_schema(self):
-
-            v = jsonschema.Draft7Validator(manifest_v2_schema())
-
             if app_packaging_format <= 1:
                 return
-
-            for error in v.iter_errors(self.manifest):
-                try:
-                    error_path = " > ".join(error.path)
-                except:
-                    error_path = str(error.path)
-
-                yield Info(
-                    "Error validating manifest using schema: in key "
-                    + error_path
-                    + "\n       "
-                    + error.message
-                )
+            validate_schema("manifest", manifest_v2_schema(), self.manifest)
 
 
 ########################################