diff --git a/scripts/requirements-extras.txt b/scripts/requirements-extras.txt
index e2fc9175c09..915b5373a56 100644
--- a/scripts/requirements-extras.txt
+++ b/scripts/requirements-extras.txt
@@ -19,7 +19,7 @@ lpc_checksum
 Pillow
 
 # can be used to sign a Zephyr application binary for consumption by a bootloader
-imgtool>=1.7.1
+imgtool>=1.9
 
 # used by nanopb module to generate sources from .proto files
 grpcio-tools