diff --git a/Cargo.toml b/Cargo.toml
index 8ac8731..352cbd6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -57,18 +57,18 @@ im-rc = "=13.0.0"
 num = "=0.2.0"
 
 # RNG 疑似乱数生成器 (randファミリー)
-rand = { version = "=0.7.0", features = ["small_rng"] }
+rand = { version = "=0.7.2", features = ["small_rng"] }
 rand_chacha = "=0.2.1"
 rand_pcg = "=0.2.0"
 
 # 正規表現
-regex = "=1.3.0"
+regex = "=1.3.1"
 
 # staticアイテムの遅延初期化
 lazy_static = "=1.4.0"
 
 # 多次元配列
-ndarray = "=0.12.1"
+ndarray = "=0.13.0"
 
 # 線形代数
 nalgebra = "=0.18.1"