diff --git a/Gemfile.lock b/Gemfile.lock
index 1c78e7dec..c5684583c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -662,7 +662,7 @@ GEM
       chronic (>= 0.6.3)
     wicked (1.3.4)
       railties (>= 3.0.7)
-    wicked_pdf (1.4.0)
+    wicked_pdf (2.6.3)
       activesupport
     wkhtmltopdf-binary (0.12.3.1)
     xpath (3.2.0)
diff --git a/app/views/layouts/pdf.html.haml b/app/views/layouts/pdf.pdf.haml
similarity index 100%
rename from app/views/layouts/pdf.html.haml
rename to app/views/layouts/pdf.pdf.haml
diff --git a/app/views/layouts/simple_pdf.html.haml b/app/views/layouts/simple_pdf.pdf.haml
similarity index 100%
rename from app/views/layouts/simple_pdf.html.haml
rename to app/views/layouts/simple_pdf.pdf.haml