diff --git a/sonic-slave-bullseye/Dockerfile.j2 b/sonic-slave-bullseye/Dockerfile.j2
index 983aa2816493..2272dac60f94 100644
--- a/sonic-slave-bullseye/Dockerfile.j2
+++ b/sonic-slave-bullseye/Dockerfile.j2
@@ -174,6 +174,7 @@ RUN apt-get update && apt-get install -y eatmydata && eatmydata apt-get install
         devscripts \
         quilt \
         stgit \
+        sbsigntool \
 # For platform-modules build
         module-assistant \
 # For thrift build\
diff --git a/sonic-slave-buster/Dockerfile.j2 b/sonic-slave-buster/Dockerfile.j2
index 7b1e4b18469f..151df8243ed3 100644
--- a/sonic-slave-buster/Dockerfile.j2
+++ b/sonic-slave-buster/Dockerfile.j2
@@ -170,6 +170,7 @@ RUN apt-get update && apt-get install -y eatmydata && eatmydata apt-get install
         devscripts \
         quilt \
         stgit \
+        sbsigntool \
 # For platform-modules build
         module-assistant \
 # For thrift build\