diff --git a/.drone.yml b/.drone.yml
index c8d1ed4..6cc96a8 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -28,7 +28,7 @@ trigger:
 
 steps:
   - name: generate-thumbnails
-    images: zavolab/imagemagick
+    images: zavolab/imagemagick:6.9.10
     volumes:
       - name: thumbnails
         path: /drone/src/images/thumbnails
@@ -65,7 +65,7 @@ trigger:
 
 steps:
   - name: generate-thumbnails
-    images: zavolab/imagemagick
+    images: zavolab/imagemagick:6.9.10
     volumes:
       - name: thumbnails
         path: /drone/src/images/thumbnails