diff --git a/docker/Dockerfile_centos8_py310 b/docker/Dockerfile_centos8_py310
index 12734501..38ade26e 100644
--- a/docker/Dockerfile_centos8_py310
+++ b/docker/Dockerfile_centos8_py310
@@ -39,8 +39,8 @@ RUN yum -y update; yum clean all
 RUN yum -y install yum-utils epel-release curl wget bzip2; yum clean all
 
 # setup mamba
-env MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
-env MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
+ENV MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
+ENV MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
 ENV PATH "${MAMBA_ROOT_PREFIX}/bin:${PATH}"
 RUN case "${TARGETPLATFORM}" in \
         "linux/amd64") MAMBA_PLATFORM="linux-64" ;; \
diff --git a/docker/Dockerfile_centos8_py311 b/docker/Dockerfile_centos8_py311
index 7f810de6..5dbe6f71 100644
--- a/docker/Dockerfile_centos8_py311
+++ b/docker/Dockerfile_centos8_py311
@@ -39,8 +39,8 @@ RUN yum -y update; yum clean all
 RUN yum -y install yum-utils epel-release curl wget bzip2; yum clean all
 
 # setup mamba
-env MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
-env MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
+ENV MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
+ENV MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
 ENV PATH "${MAMBA_ROOT_PREFIX}/bin:${PATH}"
 RUN case "${TARGETPLATFORM}" in \
         "linux/amd64") MAMBA_PLATFORM="linux-64" ;; \
diff --git a/docker/Dockerfile_centos8_py37 b/docker/Dockerfile_centos8_py37
index 52674bbd..5d131416 100644
--- a/docker/Dockerfile_centos8_py37
+++ b/docker/Dockerfile_centos8_py37
@@ -39,8 +39,8 @@ RUN yum -y update; yum clean all
 RUN yum -y install yum-utils epel-release curl wget bzip2; yum clean all
 
 # setup mamba
-env MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
-env MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
+ENV MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
+ENV MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
 ENV PATH "${MAMBA_ROOT_PREFIX}/bin:${PATH}"
 RUN case "${TARGETPLATFORM}" in \
         "linux/amd64") MAMBA_PLATFORM="linux-64" ;; \
diff --git a/docker/Dockerfile_centos8_py38 b/docker/Dockerfile_centos8_py38
index b1989102..179bd37c 100644
--- a/docker/Dockerfile_centos8_py38
+++ b/docker/Dockerfile_centos8_py38
@@ -39,8 +39,8 @@ RUN yum -y update; yum clean all
 RUN yum -y install yum-utils epel-release curl wget bzip2; yum clean all
 
 # setup mamba
-env MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
-env MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
+ENV MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
+ENV MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
 ENV PATH "${MAMBA_ROOT_PREFIX}/bin:${PATH}"
 RUN case "${TARGETPLATFORM}" in \
         "linux/amd64") MAMBA_PLATFORM="linux-64" ;; \
diff --git a/docker/Dockerfile_centos8_py39 b/docker/Dockerfile_centos8_py39
index 3687fe90..531d3d93 100644
--- a/docker/Dockerfile_centos8_py39
+++ b/docker/Dockerfile_centos8_py39
@@ -39,8 +39,8 @@ RUN yum -y update; yum clean all
 RUN yum -y install yum-utils epel-release curl wget bzip2; yum clean all
 
 # setup mamba
-env MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
-env MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
+ENV MAMBA_ROOT_PREFIX "${LAW_MAMBA_ROOT}"
+ENV MAMBA_EXE "${MAMBA_ROOT_PREFIX}/bin/micromamba"
 ENV PATH "${MAMBA_ROOT_PREFIX}/bin:${PATH}"
 RUN case "${TARGETPLATFORM}" in \
         "linux/amd64") MAMBA_PLATFORM="linux-64" ;; \