diff --git a/Cargo.toml b/Cargo.toml
index df93596..9895f81 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "slauth"
-version = "0.7.21"
+version = "0.7.22"
 authors = [
     "richer <richer.arc@gmail.com>",
     "LucFauvel <luc.fauvel@hotmail.com>",
diff --git a/build.gradle b/build.gradle
index 8498937..fd8cb51 100644
--- a/build.gradle
+++ b/build.gradle
@@ -26,7 +26,7 @@ properties.load(project.rootProject.file('local.properties').newDataInputStream(
 
 project('slauth') {
     ext {
-        libraryVersion = '0.7.21'
+        libraryVersion = '0.7.22'
     }
     publishing {
         repositories {
diff --git a/src/oath/totp.rs b/src/oath/totp.rs
index 2ec3a36..767c611 100644
--- a/src/oath/totp.rs
+++ b/src/oath/totp.rs
@@ -161,7 +161,7 @@ impl TOTPContext {
             _ => {}
         }
 
-        for i in (counter - self.backward_resync)..(counter + self.forward_resync) {
+        for i in (counter - self.backward_resync)..=(counter + self.forward_resync) {
             if self.gen_at(i).as_str().eq(value) {
                 match i {
                     i if i > counter => {
diff --git a/wrappers/android/build.gradle b/wrappers/android/build.gradle
index 191d24e..6d45fd0 100644
--- a/wrappers/android/build.gradle
+++ b/wrappers/android/build.gradle
@@ -26,7 +26,7 @@ android {
         minSdkVersion 23
         targetSdkVersion 28
         versionCode 1
-        versionName "0.7.21"
+        versionName "0.7.22"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"