diff --git a/Dockerfile b/Dockerfile
index 9f66452..fb5de60 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.11.6
 
 RUN apk update && \
-    apk add --no-cache texlive-full
+    apk add --no-cache texlive-full imagemagick ghostscript
 
 WORKDIR /latex
diff --git a/goss.yaml b/goss.yaml
index f42e7a2..a267539 100644
--- a/goss.yaml
+++ b/goss.yaml
@@ -36,4 +36,12 @@ package:
   texlive-full:
     installed: true
     versions:
-    - 20190410-r6
+      - 20190410-r6
+  imagemagick:
+    installed: true
+    versions:
+      - 7.0.9.7-r0
+  ghostscript:
+    installed: true
+    versions:
+      - 9.50-r0
diff --git a/test.sh b/test.sh
index c17a975..715fa43 100755
--- a/test.sh
+++ b/test.sh
@@ -5,7 +5,11 @@ apk update; apk add curl
 curl -fsSL https://goss.rocks/install | sh
 
 mkdir -p /latex/output && \
+  echo "Generate pdf with xelatex..." && \
   cd /latex/output && \
   xelatex /latex/doc.tex && \
+  echo "Generate pdf with xelatex... OK!" && \
   cd /latex && \
-  goss validate
+  echo "Run goss..." && \
+  goss validate --format documentation && \
+  echo "Run goss... OK!"