diff --git a/iis-setup.sh b/iis-setup.sh
index d56886c72..2b77cb2d6 100755
--- a/iis-setup.sh
+++ b/iis-setup.sh
@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Define environment variables
-export BENDER=bender-0.27.1
+export BENDER=bender-0.28.1
 export CC=gcc-9.2.0
 export CXX=g++-9.2.0
 export VCS_SEPP=vcs-2020.12
diff --git a/util/container/Dockerfile b/util/container/Dockerfile
index f6e98f713..7a9cd6d6a 100644
--- a/util/container/Dockerfile
+++ b/util/container/Dockerfile
@@ -8,7 +8,7 @@
 FROM ubuntu:22.04 AS builder
 ARG CMAKE_VERSION=3.19.4
 ARG PYTHON_VERSION=3.9.12
-ARG BENDER_VERSION=0.27.1
+ARG BENDER_VERSION=0.28.1
 ARG SPIKE_DASM_VERSION=0.1.0
 ARG VERILATOR_VERSION=5.006
 # Run dpkg without interactive dialogue