diff --git a/docker/go-junit-report.Dockerfile b/docker/go-junit-report.Dockerfile
index 7104498..d2a5f3a 100644
--- a/docker/go-junit-report.Dockerfile
+++ b/docker/go-junit-report.Dockerfile
@@ -12,9 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.13.9-alpine as build
+ARG GOLANG_VERSION
+FROM golang:$GOLANG_VERSION-alpine as build
 
-RUN apk add --no-cache build-base=0.5-r1
+RUN apk add --no-cache build-base=0.5-r2
 
 # download & compile this specific version of go-junit-report
 ARG GO_JUNIT_REPORT_VERSION
diff --git a/docker/gocover-cobertura.Dockerfile b/docker/gocover-cobertura.Dockerfile
index 21d59fd..62e1d14 100644
--- a/docker/gocover-cobertura.Dockerfile
+++ b/docker/gocover-cobertura.Dockerfile
@@ -14,7 +14,7 @@
 ARG GOLANG_VERSION
 FROM golang:$GOLANG_VERSION-alpine as build
 
-RUN apk add --no-cache build-base=0.5-r1
+RUN apk add --no-cache build-base=0.5-r2
 
 # download & compile this specific version of gocover-cobertura
 ARG GOCOVER_COBERTURA_VERSION
diff --git a/docker/golang.Dockerfile b/docker/golang.Dockerfile
index 0cfa9ec..519d500 100644
--- a/docker/golang.Dockerfile
+++ b/docker/golang.Dockerfile
@@ -15,7 +15,7 @@
 ARG GOLANG_VERSION
 FROM golang:$GOLANG_VERSION-alpine
 
-RUN apk add --no-cache git=2.24.4-r0 && \
+RUN apk add --no-cache git=2.30.2-r0 && \
     mkdir -m 777 /.cache /go/pkg
 
 ENV GO111MODULE=on CGO_ENABLED=0
diff --git a/docker/protoc.Dockerfile b/docker/protoc.Dockerfile
index a7526bc..c71c465 100644
--- a/docker/protoc.Dockerfile
+++ b/docker/protoc.Dockerfile
@@ -12,14 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.13.9-alpine as build
+ARG GOLANG_VERSION
+FROM golang:$GOLANG_VERSION-alpine as build
 
 ARG PROTOC_VERSION
 ARG PROTOC_SHA256SUM
 ARG PROTOC_GEN_GO_VERSION
 ARG PROTOC_GEN_GRPC_GATEWAY_VERSION
 
-RUN apk add --no-cache libatomic=9.3.0-r0 musl=1.1.24-r2
+RUN apk add --no-cache libatomic=10.2.1_pre1-r3 musl=1.2.2-r0
 
 # download & compile this specific version of protoc-gen-go
 RUN GO111MODULE=on CGO_ENABLED=0 go get -u \