diff --git a/Dockerfile b/Dockerfile
index 4b94399..aebbd0e 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # Stages
 # -----------------------------------------------------------------------------
 
-ARG IMAGE_BUILDER=golang:1.23.4-bullseye
+ARG IMAGE_BUILDER=golang:1.23.4-bookworm
 ARG IMAGE_FINAL=senzing/senzingsdk-runtime-beta:latest
 
 # -----------------------------------------------------------------------------
diff --git a/package.Dockerfile b/package.Dockerfile
index aefe042..048d0e0 100755
--- a/package.Dockerfile
+++ b/package.Dockerfile
@@ -3,7 +3,7 @@
 # -----------------------------------------------------------------------------
 
 ARG IMAGE_SENZINGSDK_RUNTIME=senzing/senzingsdk-runtime-beta:latest
-ARG IMAGE_BUILDER=golang:1.23.4-bullseye
+ARG IMAGE_BUILDER=golang:1.23.4-bookworm
 ARG IMAGE_FPM=dockter/fpm:latest
 ARG IMAGE_FINAL=alpine