diff --git a/.github/actions/build/entrypoint.sh b/.github/actions/build/entrypoint.sh
index 73e77dd..2d6af40 100755
--- a/.github/actions/build/entrypoint.sh
+++ b/.github/actions/build/entrypoint.sh
@@ -4,6 +4,5 @@ git config --global --add safe.directory "$PWD"
 
 VERBOSE=y make distclean test
 TARGET_ARCH=linux-arm64 VERBOSE=y make
-TARGET_ARCH=linux-armhf VERBOSE=y make
 TARGET_ARCH=linux-amd64 VERBOSE=y make
 VERBOSE=y make dist-archive
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3407de0..63c8171 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
   test:
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.20.1-jammy-2
+      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.21.1-jammy-2
     steps:
     - name: Checkout code
       uses: actions/checkout@v3
@@ -21,7 +21,7 @@ jobs:
   build-linux-amd64:
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.20.1-jammy-2
+      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.21.1-jammy-2
     steps:
     - name: Checkout code
       uses: actions/checkout@v3
@@ -32,21 +32,10 @@ jobs:
   build-linux-arm64:
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.20.1-jammy-2
+      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.21.1-jammy-2
     steps:
     - name: Checkout code
       uses: actions/checkout@v3
     - name: Build linux-arm64
       run: |
         TARGET_ARCH="linux-arm64" make all
-
-  build-linux-armhf:
-    runs-on: ubuntu-20.04
-    container:
-      image: ghcr.io/bcdevices/scm-go-usb-arm:v1.20.1-jammy-2
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v3
-    - name: Build linux-armhf
-      run: |
-        TARGET_ARCH="linux-armhf" make all
diff --git a/Dockerfile b/Dockerfile
index e4f3043..eaf0551 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 ARG BUILDPACK_HOSTOS="jammy"
 FROM buildpack-deps:${BUILDPACK_HOSTOS}-scm
 
-ENV GOLANG_VERSION="1.20.1"
+ENV GOLANG_VERSION="1.21.1"
 
 # hadolint ignore=DL3008
 RUN set -eux; \
@@ -24,16 +24,12 @@ RUN set -eux; \
 	url=; \
 	case "$arch" in \
 		'amd64') \
-			url='https://dl.google.com/go/go1.20.1.linux-amd64.tar.gz'; \
-			sha256='000a5b1fca4f75895f78befeb2eecf10bfff3c428597f3f1e69133b63b911b02'; \
-			;; \
-		'armhf') \
-			url='https://dl.google.com/go/go1.20.1.linux-armv6l.tar.gz'; \
-			sha256='e4edc05558ab3657ba3dddb909209463cee38df9c1996893dd08cde274915003'; \
+			url='https://dl.google.com/go/go1.21.1.linux-amd64.tar.gz'; \
+			sha256='b3075ae1ce5dab85f89bc7905d1632de23ca196bd8336afd93fa97434cfa55ae'; \
 			;; \
 		'arm64') \
-			url='https://dl.google.com/go/go1.20.1.linux-arm64.tar.gz'; \
-			sha256='5e5e2926733595e6f3c5b5ad1089afac11c1490351855e87849d0e7702b1ec2e'; \
+			url='https://dl.google.com/go/go1.21.1.linux-arm64.tar.gz'; \
+			sha256='7da1a3936a928fd0b2602ed4f3ef535b8cd1990f1503b8d3e1acc0fa0759c967'; \
 			;; \
 		*) echo >&2 "error: unsupported architecture '$arch' (likely packaging update needed)"; exit 1 ;; \
 	esac; \
@@ -64,8 +60,6 @@ ENV PKGS="${PKGS} crossbuild-essential-amd64"
 ENV PKGS="${PKGS} libusb-1.0-0-dev:amd64"
 ENV PKGS="${PKGS} crossbuild-essential-arm64"
 ENV PKGS="${PKGS} libusb-1.0-0-dev:arm64"
-ENV PKGS="${PKGS} crossbuild-essential-armhf"
-ENV PKGS="${PKGS} libusb-1.0-0-dev:armhf"
 ENV PKGS="${PKGS} libusb-1.0-0-dev"
 ENV PKGS="${PKGS} zip"
 
@@ -76,13 +70,12 @@ RUN set -eux; \
 deb [arch=amd64] http://security.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse\n\
 deb [arch=amd64] http://security.ubuntu.com/ubuntu jammy-security main restricted universe multiverse\n\
 deb [arch=amd64] http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse\n\
-deb [arch=arm64,armhf] http://ports.ubuntu.com/ jammy main restricted universe multiverse\n\
-deb [arch=arm64,armhf] http://ports.ubuntu.com/ jammy-updates main restricted universe multiverse\n\
-deb [arch=arm64,armhf] http://ports.ubuntu.com/ jammy-security main restricted universe multiverse\n\
-deb [arch=arm64,armhf] http://ports.ubuntu.com/ jammy-backports main restricted universe multiverse" > /etc/apt/sources.list; \
+deb [arch=arm64] http://ports.ubuntu.com/ jammy main restricted universe multiverse\n\
+deb [arch=arm64] http://ports.ubuntu.com/ jammy-updates main restricted universe multiverse\n\
+deb [arch=arm64] http://ports.ubuntu.com/ jammy-security main restricted universe multiverse\n\
+deb [arch=arm64] http://ports.ubuntu.com/ jammy-backports main restricted universe multiverse" > /etc/apt/sources.list; \
 	dpkg --add-architecture "amd64"; \
 	dpkg --add-architecture "arm64"; \
-	dpkg --add-architecture "armhf"; \
 	apt-get update; \
 	apt-get -y install --no-install-recommends ${PKGS}; \
 	rm -rf /var/lib/apt/lists/*
diff --git a/Makefile b/Makefile
index cd096fb..a49ef44 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,6 @@ TARGET_ARCHS :=
 TARGET_ARCHS += host
 TARGET_ARCHS += linux-amd64
 TARGET_ARCHS += linux-arm64
-TARGET_ARCHS += linux-armhf
 ifneq ($(TARGET_ARCH),)
   ifeq ($(filter $(TARGET_ARCH),$(TARGET_ARCHS)),)
     $(error "Invalid TARGET_ARCH: $(TARGET_ARCH), not in: $(TARGET_ARCHS)")
@@ -31,11 +30,9 @@ ifneq ($(TARGET_ARCH),)
 endif
 GCCTRIPLET_linux-amd64 := x86_64-linux-gnu
 GCCTRIPLET_linux-arm64 := aarch64-linux-gnu
-GCCTRIPLET_linux-armhf := arm-linux-gnueabihf
 GCCTRIPLETS :=
 GCCTRIPLETS += $(GCCTRIPLET_linux-amd64)
 GCCTRIPLETS += $(GCCTRIPLET_linux-arm64)
-GCCTRIPLETS += $(GCCTRIPLET_linux-armhf)
 GCCTRIPLET_CROSS ?= $(GCCTRIPLET_$(TARGET_ARCH))
 ifneq ($(GCCTRIPLET_CROSS),)
   ifeq ($(filter $(GCCTRIPLET_CROSS),$(GCCTRIPLETS)),)
@@ -55,7 +52,6 @@ GO_BUILD ?= CC=$(CC) CGO_ENABLED=$(CGO_ENABLED) $(GO) build $(GO_BUILD_OPTS)
 GO_TEST ?= CC=$(CC) CGO_ENABLED=$(CGO_ENABLED) $(GO) test $(GO_BUILD_OPTS)
 GOARCH_linux-amd64 := amd64
 GOARCH_linux-arm64 := arm64
-GOARCH_linux-armhf := arm
 GOARCH_CROSS ?= $(GOARCH_$(TARGET_ARCH))
 GOARM_CROSS ?= 7
 GOOS_CROSS := linux
@@ -70,8 +66,6 @@ BINS_amd64 :=
 BINS_amd64 += build/linux-amd64/bin/deps
 BINS_arm64 :=
 BINS_arm64 += build/linux-arm64/bin/deps
-BINS_armhf :=
-BINS_armhf += build/linux-armhf/bin/deps
 BINS_host :=
 BINS_host += build/bin/deps
 INSTALL_FILES :=
@@ -83,9 +77,6 @@ endif
 ifeq ($(TARGET_ARCH),linux-arm64)
   BINS += $(BINS_arm64)
 endif
-ifeq ($(TARGET_ARCH),linux-armhf)
-  BINS += $(BINS_armhf)
-endif
 ifeq ($(TARGET_ARCH),linux-amd64)
   BINS += $(BINS_amd64)
 endif
@@ -215,4 +206,4 @@ docker-%: check-docker-host
 		-t "$(DOCKER_TAG_BASE)-$*" \
 		/bin/bash -c "TARGET_ARCH=linux-$* VERBOSE=$(VERBOSE) make docker-guest"
 .PHONY: docker
-docker: docker-amd64 docker-arm64 docker-armhf
+docker: docker-amd64 docker-arm64
diff --git a/README.md b/README.md
index 3bb1173..96e9bc6 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,6 @@ Target platforms:
 - Host: container image platform (Linux/AArch64, Linux/x86\_64)
 - `linux/amd64`: Linux/x86\_64
 - `linux/arm64`: Linux/AArch64
-- `linux/armhf`: Linux/armv7+
 
 ## Including additional packages
 
@@ -16,7 +15,7 @@ with a `PKGS` build argument.
 ```Shell
 # Include libzmq3-dev, for all supported targets
 docker build \
-  --build-arg PKGS="libzmq3-dev libzmq3-dev:amd64 libzmq3-dev:arm64 libzmq3-dev:armhf" \
+  --build-arg PKGS="libzmq3-dev libzmq3-dev:amd64 libzmq3-dev:arm64" \
   .
 ```