diff --git a/Dockerfile.dev b/Dockerfile.dev
index 8e33d7bc4..ee724e86c 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -52,12 +52,6 @@ RUN dnf -y install \
 	xmlto rubygem-asciidoctor \
 	psmisc procps-ng
 
-# 32bit versions of some standard libraries for RT-LAB code
-RUN dnf -y install \
-	libstdc++-devel.i686 \
-	libuuid-devel.i686 \
-	glibc-devel.i686
-
 # Tools for debugging, coverage, profiling
 RUN pip install \
 	gcovr \
diff --git a/Dockerfile.dev-centos b/Dockerfile.dev-centos
index f50e0211c..2ffec6ffe 100644
--- a/Dockerfile.dev-centos
+++ b/Dockerfile.dev-centos
@@ -58,12 +58,6 @@ RUN yum -y install \
 	valgrind gdb gdb-gdbserver \
 	xmlto rubygem-asciidoctor
 
-# 32bit versions of some standard libraries for RT-LAB code
-RUN yum -y install \
-	libstdc++-devel.i686 \
-	libuuid-devel.i686 \
-	glibc-devel.i686
-
 # Tools for debugging, coverage, profiling
 RUN pip install \
 	gcovr \
diff --git a/Dockerfile.dev-ubuntu b/Dockerfile.dev-ubuntu
index 61b48d284..42c4a19c4 100644
--- a/Dockerfile.dev-ubuntu
+++ b/Dockerfile.dev-ubuntu
@@ -54,14 +54,6 @@ RUN apt-get update && apt-get install -y \
 	valgrind gdb gdbserver \
 	xmlto asciidoctor
 
-# 32bit versions of some standard libraries for RT-LAB code
-RUN dpkg --add-architecture i386
-RUN apt-get update && apt-get install -y \
-	libc6:i386 \
-	libstdc++6:i386 \
-	uuid-dev:i386 \
-	libssl-dev:i386
-
 # Tools for debugging, coverage, profiling
 RUN pip install \
 	gcovr \