diff --git a/Dockerfile.dapper b/Dockerfile.dapper
index e60428ddc1..a74ccd0d66 100644
--- a/Dockerfile.dapper
+++ b/Dockerfile.dapper
@@ -9,8 +9,8 @@ ENV https_proxy=$https_proxy
 ENV no_proxy=$no_proxy
 
 RUN apk -U --no-cache add bash git gcc musl-dev docker vim less file curl wget ca-certificates jq linux-headers zlib-dev tar zip squashfs-tools npm coreutils \
-    python2 openssl-dev libffi-dev libseccomp libseccomp-dev libseccomp-static make libuv-static sqlite-dev sqlite-static libselinux libselinux-dev zlib-dev \
-    zlib-static
+    python3 openssl-dev libffi-dev libseccomp libseccomp-dev libseccomp-static make libuv-static sqlite-dev sqlite-static libselinux libselinux-dev zlib-dev \
+    zlib-static zstd
 RUN if [ "$(go env GOARCH)" = "arm64" ]; then                                                               \
     wget https://github.com/aquasecurity/trivy/releases/download/v0.11.0/trivy_0.11.0_Linux-ARM64.tar.gz && \
     tar -zxvf trivy_0.11.0_Linux-ARM64.tar.gz                                                            && \
diff --git a/Dockerfile.test.dapper b/Dockerfile.test.dapper
index 437182803d..027904c6a7 100644
--- a/Dockerfile.test.dapper
+++ b/Dockerfile.test.dapper
@@ -1,7 +1,7 @@
-ARG GOLANG=golang:1.15.13-alpine3.13
+ARG GOLANG=golang:1.15.14-alpine3.13
 FROM ${GOLANG}
 
-RUN apk -U --no-cache add bash git gcc musl-dev docker curl jq coreutils python2 openssl
+RUN apk -U --no-cache add bash git gcc musl-dev docker curl jq coreutils python3 openssl py3-pip
 
 ENV SONOBUOY_VERSION 0.19.0