diff --git a/testing/Dockerfile b/testing/Dockerfile
index c17470f2c..bcd67cd7a 100644
--- a/testing/Dockerfile
+++ b/testing/Dockerfile
@@ -1,22 +1,26 @@
 FROM golang:1.17
 
+RUN apt-get update && apt-get install unzip
+
 # Install Terraform
 ENV TERRAFORM_VERSION=1.1.1
-RUN curl -LOks https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip && \
-    sudo mkdir -p /usr/local/bin/tf/versions/${TERRAFORM_VERSION} && \
-    sudo unzip terraform_${TERRAFORM_VERSION}_linux_amd64.zip -d /usr/local/bin/tf/versions/${TERRAFORM_VERSION} && \
-    sudo ln -s /usr/local/bin/tf/versions/${TERRAFORM_VERSION}/terraform /usr/local/bin/terraform && \
-    rm terraform_${TERRAFORM_VERSION}_linux_amd64.zip
+RUN case $(uname -m) in x86_64|amd64) ARCH="amd64" ;; aarch64|arm64|armv8) ARCH="arm64" ;; esac && \
+    wget -nv -O terraform.zip https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_${ARCH}.zip && \
+    mkdir -p /usr/local/bin/tf/versions/${TERRAFORM_VERSION} && \
+    unzip terraform.zip -d /usr/local/bin/tf/versions/${TERRAFORM_VERSION} && \
+    ln -s /usr/local/bin/tf/versions/${TERRAFORM_VERSION}/terraform /usr/local/bin/terraform && \
+    rm terraform.zip
 
 # Install conftest
 ENV CONFTEST_VERSION=0.28.3
-RUN curl -LOs https://github.com/open-policy-agent/conftest/releases/download/v${CONFTEST_VERSION}/conftest_${CONFTEST_VERSION}_Linux_x86_64.tar.gz && \
+RUN case $(uname -m) in x86_64|amd64) ARCH="amd64" ;; aarch64|arm64|armv8) ARCH="arm64" ;; esac && \
+    curl -LOs https://github.com/open-policy-agent/conftest/releases/download/v${CONFTEST_VERSION}/conftest_${CONFTEST_VERSION}_Linux_${ARCH}.tar.gz && \
     curl -LOs https://github.com/open-policy-agent/conftest/releases/download/v${CONFTEST_VERSION}/checksums.txt && \
-    sed -n "/conftest_${CONFTEST_VERSION}_Linux_x86_64.tar.gz/p" checksums.txt | sha256sum -c && \
-    sudo mkdir -p /usr/local/bin/cft/versions/${CONFTEST_VERSION} && \
-    sudo tar -C  /usr/local/bin/cft/versions/${CONFTEST_VERSION} -xzf conftest_${CONFTEST_VERSION}_Linux_x86_64.tar.gz && \
-    sudo ln -s /usr/local/bin/cft/versions/${CONFTEST_VERSION}/conftest /usr/local/bin/conftest${CONFTEST_VERSION} && \
-    rm conftest_${CONFTEST_VERSION}_Linux_x86_64.tar.gz && \
+    sed -n "/conftest_${CONFTEST_VERSION}_Linux_${ARCH}.tar.gz/p" checksums.txt | sha256sum -c && \
+    mkdir -p /usr/local/bin/cft/versions/${CONFTEST_VERSION} && \
+    tar -C  /usr/local/bin/cft/versions/${CONFTEST_VERSION} -xzf conftest_${CONFTEST_VERSION}_Linux_${ARCH}.tar.gz && \
+    ln -s /usr/local/bin/cft/versions/${CONFTEST_VERSION}/conftest /usr/local/bin/conftest${CONFTEST_VERSION} && \
+    rm conftest_${CONFTEST_VERSION}_Linux_${ARCH}.tar.gz && \
     rm checksums.txt
 
 RUN go get golang.org/x/tools/cmd/goimports