diff --git a/kanpyo-dict/Cargo.toml b/kanpyo-dict/Cargo.toml
index 448ba4e..883ae44 100644
--- a/kanpyo-dict/Cargo.toml
+++ b/kanpyo-dict/Cargo.toml
@@ -21,4 +21,4 @@ encoding_rs = "0.8.33"
 itertools = "0.14.0"
 regex = "1.10.5"
 serde = { version = "1.0.203", features = ["derive"] }
-zip = "4.0.0"
+zip = "6.0.0"
diff --git a/kanpyo-dict/src/char_category_def.rs b/kanpyo-dict/src/char_category_def.rs
index 8113b67..795d219 100644
--- a/kanpyo-dict/src/char_category_def.rs
+++ b/kanpyo-dict/src/char_category_def.rs
@@ -43,7 +43,7 @@ impl DictReadWrite for CharCategoryDef {
         let mut buf = Vec::new();
         match bincode::encode_into_std_write(self, &mut buf, bincode::config::standard()) {
             Ok(_) => w.write_all(&buf),
-            Err(e) => Err(std::io::Error::new(std::io::ErrorKind::Other, e)),
+            Err(e) => Err(std::io::Error::other(e)),
         }
     }
 
@@ -52,7 +52,7 @@ impl DictReadWrite for CharCategoryDef {
         r.read_to_end(&mut buf)?;
         match bincode::decode_from_slice(&buf, bincode::config::standard()) {
             Ok(v) => Ok(v.0),
-            Err(e) => Err(std::io::Error::new(std::io::ErrorKind::Other, e)),
+            Err(e) => Err(std::io::Error::other(e)),
         }
     }
 }
diff --git a/kanpyo-dict/src/morph_feature.rs b/kanpyo-dict/src/morph_feature.rs
index 6bbc576..1dcbc9e 100644
--- a/kanpyo-dict/src/morph_feature.rs
+++ b/kanpyo-dict/src/morph_feature.rs
@@ -21,7 +21,7 @@ impl DictReadWrite for MorphFeatureTable {
     fn write_dict<W: std::io::Write>(&self, w: &mut W) -> std::io::Result<()> {
         match bincode::encode_to_vec(self, bincode::config::standard()) {
             Ok(enc) => w.write_all(&enc),
-            Err(e) => Err(std::io::Error::new(std::io::ErrorKind::Other, e)),
+            Err(e) => Err(std::io::Error::other(e)),
         }
     }
     fn from_dict<R: std::io::Read>(r: &mut R) -> std::io::Result<Self>
@@ -32,7 +32,7 @@ impl DictReadWrite for MorphFeatureTable {
         r.read_to_end(&mut buf)?;
         match bincode::decode_from_slice(&buf, bincode::config::standard()) {
             Ok(ret) => Ok(ret.0),
-            Err(e) => Err(std::io::Error::new(std::io::ErrorKind::Other, e)),
+            Err(e) => Err(std::io::Error::other(e)),
         }
     }
 }