diff --git a/Dockerfile b/Dockerfile
index 57475f4..4a481ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,15 +1,11 @@
 ##### build stage ##############################################################
 
 ARG TARGET_ARCHITECTURE
-ARG BASE=7.0.7ec2
+ARG BASE=7.0.7ec3
 ARG REGISTRY=ghcr.io/epics-containers
 
 FROM  ${REGISTRY}/epics-base-${TARGET_ARCHITECTURE}-developer:${BASE} AS developer
 
-# Get latest ibek while in development. Will come from epics-base when stable
-COPY requirements.txt requirements.txt
-RUN pip install --upgrade -r requirements.txt
-
 # The devcontainer mounts the project root to /epics/ioc-adsimdetector. Using
 # the same location here makes devcontainer/runtime differences transparent.
 WORKDIR /epics/ioc-pmac/ibek-support
@@ -41,9 +37,6 @@ RUN motor/install.sh R7-2-3b1
 COPY ibek-support/pmac/ pmac/
 RUN pmac/install.sh 2-4-10
 
-COPY ibek-support/ADAravis/ ADAravis/
-RUN ADAravis/install.sh R2-3
-
 # create IOC source tree, generate Makefile and compile IOC Instance
 RUN ibek ioc build
 
diff --git a/ibek-support b/ibek-support
index cf52a39..eb79846 160000
--- a/ibek-support
+++ b/ibek-support
@@ -1 +1 @@
-Subproject commit cf52a39c8a0f6d3b5d590ea911b8e7870306834d
+Subproject commit eb79846664378c9c2382a90952b8b16b43818d17
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index cea131a..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-ibek==1.5.0
-# to install direct from github during development in the dev branch:
-#git+https://github.com/epics-containers/ibek.git@dev