diff --git a/docker/Dockerfile.linux.amd64 b/docker/Dockerfile.linux.amd64
index 1b2ad30..80d849d 100644
--- a/docker/Dockerfile.linux.amd64
+++ b/docker/Dockerfile.linux.amd64
@@ -1,7 +1,9 @@
-FROM alpine:3.6 as base
+FROM alpine:3.10 as base
+
+ENV MANIFEST_TOOL_VERSION 1.0.0
 
 RUN apk add --no-cache curl && \
-  curl -sSLo /bin/manifest-tool https://github.com/estesp/manifest-tool/releases/download/v0.7.0/manifest-tool-linux-amd64 && \
+  curl -sSLo /bin/manifest-tool https://github.com/estesp/manifest-tool/releases/download/v${MANIFEST_TOOL_VERSION}/manifest-tool-linux-amd64 && \
   chmod +x /bin/manifest-tool
 
 FROM plugins/base:multiarch
diff --git a/docker/Dockerfile.linux.arm b/docker/Dockerfile.linux.arm
index 3afe8db..96e474a 100644
--- a/docker/Dockerfile.linux.arm
+++ b/docker/Dockerfile.linux.arm
@@ -1,7 +1,9 @@
-FROM alpine:3.6 as base
+FROM alpine:3.10 as base
+
+ENV MANIFEST_TOOL_VERSION 1.0.0
 
 RUN apk add --no-cache curl && \
-  curl -sSLo /bin/manifest-tool https://github.com/estesp/manifest-tool/releases/download/v0.7.0/manifest-tool-linux-armv7 && \
+  curl -sSLo /bin/manifest-tool https://github.com/estesp/manifest-tool/releases/download/v${MANIFEST_TOOL_VERSION}/manifest-tool-linux-armv7 && \
   chmod +x /bin/manifest-tool
 
 FROM plugins/base:multiarch
diff --git a/docker/Dockerfile.linux.arm64 b/docker/Dockerfile.linux.arm64
index a664d1a..5d23a92 100644
--- a/docker/Dockerfile.linux.arm64
+++ b/docker/Dockerfile.linux.arm64
@@ -1,7 +1,9 @@
-FROM alpine:3.6 as base
+FROM alpine:3.10 as base
+
+ENV MANIFEST_TOOL_VERSION 1.0.0
 
 RUN apk add --no-cache curl && \
-  curl -sSLo /bin/manifest-tool https://github.com/estesp/manifest-tool/releases/download/v0.7.0/manifest-tool-linux-arm64 && \
+  curl -sSLo /bin/manifest-tool https://github.com/estesp/manifest-tool/releases/download/v${MANIFEST_TOOL_VERSION}/manifest-tool-linux-arm64 && \
   chmod +x /bin/manifest-tool
 
 FROM plugins/base:multiarch
diff --git a/docker/Dockerfile.windows.1803 b/docker/Dockerfile.windows.1803
index 740245d..d1575a7 100644
--- a/docker/Dockerfile.windows.1803
+++ b/docker/Dockerfile.windows.1803
@@ -8,7 +8,7 @@ LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" `
   org.label-schema.vendor="Drone.IO Community" `
   org.label-schema.schema-version="1.0"
 
-ENV MANIFEST_TOOL_VERSION 0.9.0
+ENV MANIFEST_TOOL_VERSION 1.0.0
 
 RUN New-Item -ItemType directory -Path 'C:/bin'; `
     [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; `
diff --git a/docker/Dockerfile.windows.1809 b/docker/Dockerfile.windows.1809
index 8fda16e..376dfc4 100644
--- a/docker/Dockerfile.windows.1809
+++ b/docker/Dockerfile.windows.1809
@@ -8,7 +8,7 @@ LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" `
   org.label-schema.vendor="Drone.IO Community" `
   org.label-schema.schema-version="1.0"
 
-ENV MANIFEST_TOOL_VERSION 0.9.0
+ENV MANIFEST_TOOL_VERSION 1.0.0
 
 RUN New-Item -ItemType directory -Path 'C:/bin'; `
     [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; `
diff --git a/main.go b/main.go
index 3fc275c..5265cf1 100644
--- a/main.go
+++ b/main.go
@@ -29,6 +29,11 @@ func main() {
 			Usage:  "password for registry",
 			EnvVar: "PLUGIN_PASSWORD,MANIFEST_PASSWORD,DOCKER_PASSWORD",
 		},
+		cli.BoolFlag{
+			Name:   "insecure",
+			Usage:  "enable allow insecure registry",
+			EnvVar: "PLUGIN_INSECURE",
+		},
 		cli.StringSliceFlag{
 			Name:   "platforms",
 			Usage:  "platforms for manifests",
@@ -189,6 +194,7 @@ func run(c *cli.Context) error {
 		Config: Config{
 			Username:      c.String("username"),
 			Password:      c.String("password"),
+			Insecure:      c.Bool("insecure"),
 			Platforms:     c.StringSlice("platforms"),
 			Target:        c.String("target"),
 			Template:      c.String("template"),
diff --git a/plugin.go b/plugin.go
index 7c3e12a..edd055d 100644
--- a/plugin.go
+++ b/plugin.go
@@ -46,6 +46,7 @@ type (
 	Config struct {
 		Username      string
 		Password      string
+		Insecure      bool
 		Platforms     []string
 		Target        string
 		Template      string
@@ -73,18 +74,22 @@ func mainfestToolPath() string {
 func (p *Plugin) Exec() error {
 	args := []string{}
 
-	if p.Config.Username == "" {
+	if p.Config.Username == "" && p.Config.Password != "" {
 		return errors.New("you must provide a username")
 	} else {
 		args = append(args, fmt.Sprintf("--username=%s", p.Config.Username))
 	}
 
-	if p.Config.Password == "" {
+	if p.Config.Password == "" && p.Config.Username != "" {
 		return errors.New("you must provide a password")
 	} else {
 		args = append(args, fmt.Sprintf("--password=%s", p.Config.Password))
 	}
 
+	if p.Config.Insecure {
+		args = append(args, "--insecure")
+	}
+
 	args = append(args, "push")
 
 	if p.Config.Spec != "" {