diff --git a/src/characters.ts b/src/characters.ts
index 60af507..8b3959c 100644
--- a/src/characters.ts
+++ b/src/characters.ts
@@ -17,7 +17,7 @@ type TargetEnum = z.infer<typeof TargetEnum>;
 const PotencyStatus = z.object({
     duration: z.number().int(),
     potency: z.number().int()
-});
+}).strict();
 export type PotencyStatus = z.infer<typeof PotencyStatus>;
 
 const Effect = z.object({
@@ -34,14 +34,14 @@ const Effect = z.object({
     accuracyChange: z.optional(PotencyStatus),
     speedChange: z.optional(PotencyStatus),
     function: z.optional(z.string())
-});
+}).strict();
 type Effect = z.infer<typeof Effect>;
 
 const Skill = z.object({
     name: z.string(),
     accuracy: z.optional(z.number().int()),
     effects: z.array(Effect)
-});
+}).strict();
 type Skill = z.infer<typeof Skill>;
 
 const Character = z.object({
@@ -52,7 +52,7 @@ const Character = z.object({
     health: z.number().int(),
     speed: z.number().int(),
     skills: z.tuple([Skill, Skill, Skill])
-});
+}).strict();
 export type Character = z.infer<typeof Character>;
 
 const CharacterJSON = z.array(Character);