diff --git a/src/examples/custom-config.yml b/src/examples/custom-config.yml
new file mode 100644
index 0000000..ace72dc
--- /dev/null
+++ b/src/examples/custom-config.yml
@@ -0,0 +1,20 @@
+description: >
+  Update Strigo classe from Zenika training with specific config.
+usage:
+  version: 2.1
+
+  orbs:
+    training-material: zenika/training-material@w.x
+    ztraining2strigo: zenika-training/ztraining2strigo@y.z
+
+  workflows:
+    version: 2
+
+    build-and-update:
+      jobs:
+        - training-material/build
+        - ztraining2strigo/update:
+            config-file: strigo.custom.json
+            requires:
+              - training-material/build
+            context: strigo-api
diff --git a/src/jobs/update.yml b/src/jobs/update.yml
index c6b53a2..544a382 100644
--- a/src/jobs/update.yml
+++ b/src/jobs/update.yml
@@ -1,6 +1,10 @@
 description: >
   Update Strigo classe from Zenika training.
 
+parameters:
+  config-file:
+    type: string
+    default: ''
 docker:
   - image: zenika/ztraining2strigo
 steps:
@@ -11,4 +15,7 @@ steps:
       name: Update Strigo classe
       command: |
         mv dist/pdf/* pdf/
-        python3 -m ztraining2strigo update --diff
+        if [ -n "<< parameters.config-file >>" ]; then
+          CONFIG_OPT='--config << parameters.config-file >>'
+        fi
+        python3 -m ztraining2strigo ${CONFIG_OPT} update --diff