diff --git a/.gitlab/ci/custom.images.yml b/.gitlab/ci/custom.images.yml
index cc13094..7da6733 100644
--- a/.gitlab/ci/custom.images.yml
+++ b/.gitlab/ci/custom.images.yml
@@ -58,9 +58,6 @@ golangci-lint-1.52-alpine:
   extends: .build_static_image
 
 # Used by gitlab-operator: https://gitlab.com/gitlab-org/cloud-native/gitlab-operator
-gitlab-operator-build-base-golang-1.20:
-  extends: .build_static_image
-
 gitlab-operator-build-base-golang-1.21:
   extends: .build_static_image
 
diff --git a/.gitlab/ci/gitaly.images.yml b/.gitlab/ci/gitaly.images.yml
index e6e99d9..ee4775c 100644
--- a/.gitlab/ci/gitaly.images.yml
+++ b/.gitlab/ci/gitaly.images.yml
@@ -19,10 +19,10 @@ gitaly:
   parallel:
     matrix:
       - OS: ['debian:bookworm']
-        GOLANG: ['1.20', '1.21', '1.22']
+        GOLANG: ['1.21', '1.22']
         RUST: ['1.73']
         GIT: ['2.36']
       - OS: ['ubi:8.6']
-        GOLANG: ['1.20', '1.21', '1.22']
+        GOLANG: ['1.21', '1.22']
         RUST: ['1.73']
         GIT: ['2.36']
diff --git a/.gitlab/ci/gitlab.images.yml b/.gitlab/ci/gitlab.images.yml
index 454bb9e..1fcfbef 100644
--- a/.gitlab/ci/gitlab.images.yml
+++ b/.gitlab/ci/gitlab.images.yml
@@ -100,11 +100,11 @@ gitlab-workhorse:
     matrix:
       - OS: ['debian:bookworm']
         RUBY: ['3.0', '3.1', '3.2']
-        GOLANG: ['1.20', '1.21', '1.22']
+        GOLANG: ['1.21', '1.22']
         RUST: ['1.73']
         GIT: ['2.36']
       - OS: ['ubi:8.6']
         RUBY: ['3.0', '3.1', '3.2']
-        GOLANG: ['1.20', '1.21', '1.22']
+        GOLANG: ['1.21', '1.22']
         RUST: ['1.73']
         GIT: ['2.36']
diff --git a/Dockerfile.gitlab-operator-build-base-golang-1.20 b/Dockerfile.gitlab-operator-build-base-golang-1.20
deleted file mode 100644
index f6f08b5..0000000
--- a/Dockerfile.gitlab-operator-build-base-golang-1.20
+++ /dev/null
@@ -1,115 +0,0 @@
-ARG GOLANG_VERSION=1.20
-ARG ALPINE_VERSION=3.18
-ARG OPM_ALPINE_VERSION=3.18
-
-## Opm
-
-FROM golang:${GOLANG_VERSION}-alpine${OPM_ALPINE_VERSION} as opm
-
-ARG OPM_VERSION=1.19.1
-ENV GOPROXY="https://proxy.golang.org/"
-
-RUN apk add --no-cache make gcc musl-dev curl git bash
-
-## on Alpine opm needs to be built from scratch due to glibc vs musl issues
-RUN mkdir -p /src \
-    && curl -s -L -o /src/operator-registry-${OPM_VERSION}.tgz https://github.com/operator-framework/operator-registry/archive/refs/tags/v${OPM_VERSION}.tar.gz \
-    && cd /src \
-    && tar -xzf operator-registry-${OPM_VERSION}.tgz \
-    && ln -s operator-registry-${OPM_VERSION} operator-registry \
-    && cd operator-registry \
-    && make bin/opm
-
-## Kustomize
-FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} as kustomize
-
-ARG KUSTOMIZE_VERSION=4.5.7
-ENV GOPROXY="https://proxy.golang.org/"
-
-RUN apk add --no-cache gcc musl-dev
-RUN go install sigs.k8s.io/kustomize/kustomize/v4@v${KUSTOMIZE_VERSION}
-
-## Controller-gen
-FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} as controller-gen
-
-ARG CONTROLLER_GEN_VERSION=0.7.0
-ENV GOPROXY="https://proxy.golang.org/"
-
-RUN go install sigs.k8s.io/controller-tools/cmd/controller-gen@v${CONTROLLER_GEN_VERSION}
-
-## Build
-FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} as build
-
-LABEL maintainer="GitLab Distribution Team" \
-      description="Build base image for the GitLab Operator project."
-
-ARG KUBERNETES_VERSION=1.23.1
-ARG KUBEBUILDER_VERSION=3.12.0
-ARG YQ_VERSION=4.7.0
-ARG HELM_VERSION=3.9.4
-ARG OPERATORSDK_VERSION=1.32.0
-ARG TASK_VERSION=3.12.1
-ENV VCLUSTER_VERSION=0.16.3
-# ARG OPM_VERSION=1.19.0
-
-RUN apk add --no-cache podman buildah curl make gcc musl-dev git bash coreutils
-
-# make VFS podman's default storage driver to
-# accomodate running podman within docker
-RUN sed -i 's#^driver.*$#driver = "vfs"#g' /etc/containers/storage.conf
-
-ARG GINKGO_V2_VERSION=2.9.5
-RUN go install github.com/onsi/ginkgo/v2/ginkgo@v${GINKGO_V2_VERSION} \
-    && ln -s "${GOPATH}/bin/ginkgo" "${GOPATH}/bin/ginkgo2"
-
-RUN go install golang.org/x/lint/golint@latest
-
-# Kubebuilder
-RUN mkdir -p /usr/local/kubebuilder/bin \
-    && curl --retry 6 -Ls -o /usr/local/kubebuilder/bin/kubebuilder \
-      https://github.com/kubernetes-sigs/kubebuilder/releases/download/v${KUBEBUILDER_VERSION}/kubebuilder_linux_amd64 \
-    && curl --retry 6 -Ls "https://go.kubebuilder.io/test-tools/${KUBERNETES_VERSION}/linux/amd64" | tar -xz -C /usr/local/kubebuilder --strip-components=1 \
-    && chmod +x /usr/local/kubebuilder/bin/* \
-    && ln -sfv /usr/local/kubebuilder/bin/* /usr/local/bin
-
-# Yq
-RUN curl --retry 6 -LsO https://github.com/mikefarah/yq/releases/download/v${YQ_VERSION}/yq_linux_amd64 \
-    && chmod +x yq_linux_amd64 \
-    && mv yq_linux_amd64 /usr/local/bin/yq
-
-# Helm
-RUN curl --retry 6 -Ls "https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz" | tar -xz -C /tmp/ \
-    && chmod +x /tmp/linux-amd64/helm \
-    && mv /tmp/linux-amd64/helm /usr/local/bin/helm
-
-# Opm
-COPY --from=opm /src/operator-registry/bin/opm /usr/local/bin/opm
-
-# vcluster
-RUN curl -L -o /usr/local/bin/vcluster \
-    https://github.com/loft-sh/vcluster/releases/download/v${VCLUSTER_VERSION}/vcluster-linux-amd64 \
-    && chmod +x /usr/local/bin/vcluster
-
-# Operator-SDK
-RUN curl -o /usr/local/bin/operator-sdk_linux_amd64 -L \
-        https://github.com/operator-framework/operator-sdk/releases/download/v${OPERATORSDK_VERSION}/operator-sdk_linux_amd64 \
-    ; chmod +x /usr/local/bin/operator-sdk_linux_amd64 ; ln -s /usr/local/bin/operator-sdk_linux_amd64 /usr/local/bin/operator-sdk
-
-# Kustomize
-COPY --from=kustomize /go/bin/kustomize /usr/local/bin/kustomize
-# Controller-gen
-COPY --from=controller-gen /go/bin/controller-gen /usr/local/bin/controller-gen
-
-# Task
-RUN curl --retry 6 -Ls https://github.com/go-task/task/releases/download/v${TASK_VERSION}/task_linux_amd64.tar.gz | tar -xz -C /tmp/ \
-    && chmod +x /tmp/task \
-    && mv /tmp/task /usr/local/bin/task
-
-# Clean up temporary installation files
-RUN rm -rf /tmp/*
-
-## Final image
-FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION}
-LABEL maintainer="GitLab Distribution Team" \
-      description="Build base image for the GitLab Operator project."
-COPY --from=build / /
diff --git a/scripts/lib/custom-docker-build b/scripts/lib/custom-docker-build
index 1358a75..2267ca1 100755
--- a/scripts/lib/custom-docker-build
+++ b/scripts/lib/custom-docker-build
@@ -41,12 +41,6 @@ function print_golang_args() {
     # NOTE: See https://gitlab.com/gitlab-org/gitlab-build-images#note-regarding-golang-and-fips
     #       when adding a new major/minor Golang version.
     case "$1" in
-        1.20)
-            INSTALL_GOLANG_VERSION=1.20.14
-            INSTALL_GOLANG_FIPS_TAG=1.20.12-1
-            GOLANG_DOWNLOAD_SHA256[amd64]="ff445e48af27f93f66bd949ae060d97991c83e11289009d311f25426258f9c44"
-            GOLANG_DOWNLOAD_SHA256[arm64]="2096507509a98782850d1f0669786c09727053e9fe3c92b03c0d96f48700282b"
-            ;;
         1.21)
             INSTALL_GOLANG_VERSION=1.21.9
             INSTALL_GOLANG_FIPS_TAG=1.21.9-1