diff --git a/README.md b/README.md
index 0e07b9f..fa69e17 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ Before you start using the library, you should also check our other related proj
 
 ### Requirements
 
-- `minSdkVersion 19` (Android 4.4 KitKat)
+- `minSdkVersion 21` (Android 5.0 Lollipop)
 
 ### Gradle
 
diff --git a/buildSrc/src/main/kotlin/Constants.kt b/buildSrc/src/main/kotlin/Constants.kt
index 0b433a5..6872281 100644
--- a/buildSrc/src/main/kotlin/Constants.kt
+++ b/buildSrc/src/main/kotlin/Constants.kt
@@ -34,7 +34,7 @@ object Constants {
     object Android {
         const val compileSdkVersion = 33
         const val targetSdkVersion = 33
-        const val minSdkVersion = 19
+        const val minSdkVersion = 21
         const val buildToolsVersion = "33.0.2"
     }
 
diff --git a/library/gradle.properties b/library/gradle.properties
index 880ab1d..bf21210 100644
--- a/library/gradle.properties
+++ b/library/gradle.properties
@@ -14,6 +14,6 @@
 # and limitations under the License.
 #
 
-VERSION_NAME=1.4.0
+VERSION_NAME=1.4.1-SNAPSHOT
 GROUP_ID=com.wultra.android.sslpinning
 ARTIFACT_ID=wultra-ssl-pinning