diff --git a/.drone.yml b/.drone.yml
index e1b14a5..c4e5c5c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,7 +9,7 @@ steps:
       - git submodule update --recursive --remote
 
   - name: check documentation build
-    image: rust:1.49-slim-buster
+    image: rust:1.56-slim-buster
     commands:
       - cargo install mdbook --git https://github.com/Ruin0x11/mdBook.git --branch localization
             --rev 9d8147c --force --debug