diff --git a/crates/bili_sync/src/adapter/collection.rs b/crates/bili_sync/src/adapter/collection.rs
index 26d232d..2ffdf5d 100644
--- a/crates/bili_sync/src/adapter/collection.rs
+++ b/crates/bili_sync/src/adapter/collection.rs
@@ -16,7 +16,7 @@ use crate::bilibili::{BiliClient, Collection, CollectionItem, CollectionType, Vi
 
 impl VideoSource for collection::Model {
     fn display_name(&self) -> Cow<'static, str> {
-        format!("{}「{}」", CollectionType::from(self.r#type), self.name).into()
+        format!("{}「{}」", CollectionType::from_expected(self.r#type), self.name).into()
     }
 
     fn filter_expr(&self) -> SimpleExpr {
@@ -76,14 +76,14 @@ impl VideoSource for collection::Model {
             CollectionItem {
                 sid: self.s_id.to_string(),
                 mid: self.m_id.to_string(),
-                collection_type: CollectionType::from(self.r#type),
+                collection_type: CollectionType::from_expected(self.r#type),
             },
         );
         let collection_info = collection.get_info().await?;
         ensure!(
             collection_info.sid == self.s_id
                 && collection_info.mid == self.m_id
-                && collection_info.collection_type == CollectionType::from(self.r#type),
+                && collection_info.collection_type == CollectionType::from_expected(self.r#type),
             "collection info mismatch: {:?} != {:?}",
             collection_info,
             collection.collection
diff --git a/crates/bili_sync/src/bilibili/collection.rs b/crates/bili_sync/src/bilibili/collection.rs
index b8e6c93..75301c0 100644
--- a/crates/bili_sync/src/bilibili/collection.rs
+++ b/crates/bili_sync/src/bilibili/collection.rs
@@ -10,13 +10,23 @@ use serde_json::Value;
 use crate::bilibili::credential::encoded_query;
 use crate::bilibili::{BiliClient, MIXIN_KEY, Validate, VideoInfo};
 
-#[derive(PartialEq, Eq, Hash, Clone, Debug, Deserialize, Default, Copy)]
+#[derive(PartialEq, Eq, Hash, Clone, Debug, Default, Copy)]
 pub enum CollectionType {
     Series,
     #[default]
     Season,
 }
 
+impl<'de> serde::Deserialize<'de> for CollectionType {
+    fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        let v = i32::deserialize(deserializer)?;
+        CollectionType::try_from(v).map_err(serde::de::Error::custom)
+    }
+}
+
 impl From<CollectionType> for i32 {
     fn from(v: CollectionType) -> Self {
         match v {
@@ -26,16 +36,24 @@ impl From<CollectionType> for i32 {
     }
 }
 
-impl From<i32> for CollectionType {
-    fn from(v: i32) -> Self {
+impl TryFrom<i32> for CollectionType {
+    type Error = anyhow::Error;
+
+    fn try_from(v: i32) -> Result<Self, Self::Error> {
         match v {
-            1 => CollectionType::Series,
-            2 => CollectionType::Season,
-            _ => panic!("invalid collection type"),
+            1 => Ok(CollectionType::Series),
+            2 => Ok(CollectionType::Season),
+            v => Err(anyhow!("got invalid collection type {}", v)),
         }
     }
 }
 
+impl CollectionType {
+    pub fn from_expected(v: i32) -> Self {
+        Self::try_from(v).expect("invalid collection type")
+    }
+}
+
 impl Display for CollectionType {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         let s = match self {