diff --git a/README.md b/README.md
index 1c81622..a54fa2c 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ repositories {
 }
 
 dependencies {
-    implementation("me.alex_s168:blitz:0.20")
+    implementation("me.alex_s168:blitz:0.21")
 }
 ```
 
@@ -242,4 +242,4 @@ println(JSON.parse(json)!!.obj["b"]!!.obj["1"]!!.num)
 - `BlitzHashMap`
 - `Dense16x16BoolMap`
 - `DenseIx16x16BoolMap`
-- `SlicedIntKeyMap`
\ No newline at end of file
+- `SlicedIntKeyMap`