2 files changed, 6 insertions, 6 deletions

diff --git a/Dockerfile b/Dockerfile
index f7d5bc9..69dad20 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-FROM golang:alpine as build
+FROM golang:alpine AS build
 WORKDIR /app
 
 # install build dependencies
 RUN apk add --no-cache build-base git && \
-    apk add --no-cache -X http://dl-cdn.alpinelinux.org/alpine/edge/testing yara-dev
+    apk add --no-cache -X https://dl-cdn.alpinelinux.org/alpine/edge/testing yara-dev
 
 # copy and build PMF
 COPY . .
@@ -14,10 +14,10 @@ LABEL org.opencontainers.image.source="https://github.com/jvoisin/php-malware-fi
 WORKDIR /app
 
 # install dependencies
-RUN apk add --no-cache libressl
+RUN apk add --no-cache libressl && \
+    apk add --no-cache -X https://dl-cdn.alpinelinux.org/alpine/edge/testing yara
 
-# copy files from build container
-COPY --from=build /usr/local/lib /usr/lib
+# copy binary from build container
 COPY --from=build /app/php-malware-finder /app
 
 ENTRYPOINT ["/app/php-malware-finder", "-v", "-a", "-c", "/data"]
diff --git a/Makefile b/Makefile
index 8cdf2fd..d5b9661 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ tests: php-malware-finder ## Run test suite
 
 docker: ## Build docker image
         docker pull $(IMAGE_NAME):latest || true
-        docker build --pull -t $(IMAGE_NAME):latest .
+        docker build --pull --cache-from=$(IMAGE_NAME):latest -t $(IMAGE_NAME):latest .
         docker tag $(IMAGE_NAME):latest $(IMAGE_NAME):$(IMAGE_VERSION)
 
 docker-tests: ## Run docker image against the samples folder