diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5daad6d..95aca59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.0.21
+- fix: remove receipt vertical padding ([#13](https://github.com/iandis/blue_print_pos/pull/13))
+
 ## 0.0.20
 - fix: batch print calculations ([#11](https://github.com/iandis/blue_print_pos/pull/11))
 
diff --git a/pubspec.lock b/pubspec.lock
index 714986a..a1b38c9 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -14,7 +14,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.9.0"
+    version: "2.8.2"
   blue_thermal_printer:
     dependency: "direct main"
     description:
@@ -35,21 +35,28 @@ packages:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.1"
+    version: "1.2.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.1"
+    version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.16.0"
+    version: "1.15.0"
   convert:
     dependency: transitive
     description:
@@ -84,7 +91,7 @@ packages:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.1"
+    version: "1.2.0"
   fixnum:
     dependency: transitive
     description:
@@ -136,28 +143,28 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.12"
+    version: "0.12.11"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.5"
+    version: "0.1.3"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.7.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.2"
+    version: "1.8.0"
   petitparser:
     dependency: transitive
     description:
@@ -206,7 +213,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.0"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
@@ -227,21 +234,21 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.1"
+    version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.1"
+    version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.12"
+    version: "0.4.8"
   typed_data:
     dependency: transitive
     description:
@@ -255,7 +262,7 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.2"
+    version: "2.1.1"
   xml:
     dependency: transitive
     description:
@@ -264,5 +271,5 @@ packages:
     source: hosted
     version: "5.1.1"
 sdks:
-  dart: ">=2.17.0-0 <3.0.0"
+  dart: ">=2.16.0 <3.0.0"
   flutter: ">=2.5.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index b02b432..15fafa5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: blue_print_pos
 description: Plugin to connecting bluetooth printer device, support on Android and iOS
-version: 0.0.20
+version: 0.0.21
 homepage: https://github.com/andriyoganp/blue_print_pos
 
 publish_to: 'none'