diff --git a/tools/release/sign_apk.sh b/tools/release/sign_apk.sh
index 866510ba13..77af5823c4 100755
--- a/tools/release/sign_apk.sh
+++ b/tools/release/sign_apk.sh
@@ -18,7 +18,7 @@ PARAM_APK=$2
 
 # Other params
 BUILD_TOOLS_VERSION="29.0.3"
-MIN_SDK_VERSION=19
+MIN_SDK_VERSION=21
 
 echo "Signing APK with build-tools version ${BUILD_TOOLS_VERSION} for min SDK version ${MIN_SDK_VERSION}..."
 
diff --git a/tools/release/sign_apk_unsafe.sh b/tools/release/sign_apk_unsafe.sh
index bf021e8345..b145ad45da 100755
--- a/tools/release/sign_apk_unsafe.sh
+++ b/tools/release/sign_apk_unsafe.sh
@@ -24,7 +24,7 @@ PARAM_KEY_PASS=$4
 
 # Other params
 BUILD_TOOLS_VERSION="29.0.3"
-MIN_SDK_VERSION=19
+MIN_SDK_VERSION=21
 
 echo "Signing APK with build-tools version ${BUILD_TOOLS_VERSION} for min SDK version ${MIN_SDK_VERSION}..."