diff --git a/docker/archlinux/Dockerfile b/docker/archlinux/Dockerfile
index 18f573cb2..282d49ab6 100644
--- a/docker/archlinux/Dockerfile
+++ b/docker/archlinux/Dockerfile
@@ -1,6 +1,6 @@
 FROM archlinux:base
 
-ENV LANG C
+ENV LANG=C
 RUN pacman -Syu --noconfirm
 RUN pacman-db-upgrade
 # qt5-base skipped
diff --git a/docker/debian-11-bullseye/Dockerfile b/docker/debian-11-bullseye/Dockerfile
index 46cac1b2d..89293487d 100644
--- a/docker/debian-11-bullseye/Dockerfile
+++ b/docker/debian-11-bullseye/Dockerfile
@@ -1,7 +1,7 @@
 FROM debian:bullseye-slim
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \
diff --git a/docker/debian-12-bookworm/Dockerfile b/docker/debian-12-bookworm/Dockerfile
index 92527289c..c65889f12 100644
--- a/docker/debian-12-bookworm/Dockerfile
+++ b/docker/debian-12-bookworm/Dockerfile
@@ -1,7 +1,7 @@
 FROM debian:bookworm-slim
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \
diff --git a/docker/debian-13-trixie/Dockerfile b/docker/debian-13-trixie/Dockerfile
index c64707ceb..e9bbc4f84 100644
--- a/docker/debian-13-trixie/Dockerfile
+++ b/docker/debian-13-trixie/Dockerfile
@@ -1,7 +1,7 @@
 FROM debian:trixie-slim
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \
diff --git a/docker/fedora-36/Dockerfile b/docker/fedora-36/Dockerfile
index 3cb7b93c6..710e22b15 100644
--- a/docker/fedora-36/Dockerfile
+++ b/docker/fedora-36/Dockerfile
@@ -1,6 +1,6 @@
 FROM fedora:36
 
-ENV LANG C
+ENV LANG=C
 # qt5-qtbase-devel skipped
 RUN dnf install -y passwd sudo git make gcc gcc-c++ arm-none-eabi-gcc-cs arm-none-eabi-newlib readline-devel bzip2-devel lz4-devel bluez-libs-devel python3-devel openssl-devel libatomic findutils
 
diff --git a/docker/fedora-37/Dockerfile b/docker/fedora-37/Dockerfile
index 122834560..ac62ac1a5 100644
--- a/docker/fedora-37/Dockerfile
+++ b/docker/fedora-37/Dockerfile
@@ -1,6 +1,6 @@
 FROM fedora:37
 
-ENV LANG C
+ENV LANG=C
 # qt5-qtbase-devel skipped
 RUN dnf install -y passwd sudo git make gcc gcc-c++ arm-none-eabi-gcc-cs arm-none-eabi-newlib readline-devel bzip2-devel lz4-devel bluez-libs-devel python3-devel openssl-devel libatomic findutils
 
diff --git a/docker/homebrew/Dockerfile b/docker/homebrew/Dockerfile
index fba5e84a7..0a432fc18 100644
--- a/docker/homebrew/Dockerfile
+++ b/docker/homebrew/Dockerfile
@@ -1,6 +1,6 @@
 FROM homebrew/brew
 
-ENV LANG C
+ENV LANG=C
 
 USER linuxbrew
 WORKDIR "/home/linuxbrew"
diff --git a/docker/kali/Dockerfile b/docker/kali/Dockerfile
index 0cf70c603..f65247a8d 100644
--- a/docker/kali/Dockerfile
+++ b/docker/kali/Dockerfile
@@ -1,7 +1,7 @@
 FROM kalilinux/kali-rolling
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \
diff --git a/docker/opensuse-leap/Dockerfile b/docker/opensuse-leap/Dockerfile
index 7e82c5f61..d02c0e59a 100644
--- a/docker/opensuse-leap/Dockerfile
+++ b/docker/opensuse-leap/Dockerfile
@@ -1,6 +1,6 @@
 FROM opensuse/leap
 
-ENV LANG C
+ENV LANG=C
 # libqt5-qtbase-devel skipped
 RUN zypper --non-interactive install --no-recommends shadow sudo git patterns-devel-base-devel_basis gcc-c++ readline-devel libbz2-devel liblz4-devel bluez-devel python3-devel libopenssl-devel
 
diff --git a/docker/opensuse-tumbleweed/Dockerfile b/docker/opensuse-tumbleweed/Dockerfile
index 8a18c7d43..b314f890d 100644
--- a/docker/opensuse-tumbleweed/Dockerfile
+++ b/docker/opensuse-tumbleweed/Dockerfile
@@ -1,6 +1,6 @@
 FROM opensuse/tumbleweed
 
-ENV LANG C
+ENV LANG=C
 # libqt5-qtbase-devel skipped
 RUN zypper --non-interactive install --no-recommends shadow sudo git patterns-devel-base-devel_basis gcc-c++ readline-devel libbz2-devel liblz4-devel bluez-devel python3-devel libopenssl-devel cross-arm-none-gcc12 cross-arm-none-newlib-devel
 
diff --git a/docker/parrot-core-latest/Dockerfile b/docker/parrot-core-latest/Dockerfile
index 557ca4d17..ebce383fd 100644
--- a/docker/parrot-core-latest/Dockerfile
+++ b/docker/parrot-core-latest/Dockerfile
@@ -1,7 +1,7 @@
 FROM parrotsec/core:latest
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \
diff --git a/docker/ubuntu-18.04/Dockerfile b/docker/ubuntu-18.04/Dockerfile
index f2747bc33..ac06c0c51 100644
--- a/docker/ubuntu-18.04/Dockerfile
+++ b/docker/ubuntu-18.04/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:18.04
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 # python3 skipped, not yet searchable with pkg-config python3
 RUN apt-get update && \
diff --git a/docker/ubuntu-20.04/Dockerfile b/docker/ubuntu-20.04/Dockerfile
index 8a1cf03ef..1444b2874 100644
--- a/docker/ubuntu-20.04/Dockerfile
+++ b/docker/ubuntu-20.04/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:20.04
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \
diff --git a/docker/ubuntu-22.04/Dockerfile b/docker/ubuntu-22.04/Dockerfile
index e2d93c665..b124cfc4b 100644
--- a/docker/ubuntu-22.04/Dockerfile
+++ b/docker/ubuntu-22.04/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:22.04
 
-ENV LANG C
-ENV DEBIAN_FRONTEND noninteractive
+ENV LANG=C
+ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
     apt-get upgrade -y && \