diff --git a/Gemfile b/Gemfile
index 01c2cfd7..e1ed43a7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ gem 'bootsnap', require: false
 gem 'mysql2'
 gem 'prawn'
 gem 'prawn-table'
-gem 'haml'
+gem 'haml', '~> 5.0'
 gem 'haml-rails'
 gem 'kaminari'
 gem 'simple_form'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5b1a9fe7..cfda4050 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -234,9 +234,8 @@ GEM
       rails (>= 4.0.0)
     globalid (1.0.0)
       activesupport (>= 5.0)
-    haml (6.1.1)
-      temple (>= 0.8.2)
-      thor
+    haml (5.2.2)
+      temple (>= 0.8.0)
       tilt
     haml-rails (2.1.0)
       actionpack (>= 5.1)
@@ -625,7 +624,7 @@ DEPENDENCIES
   foodsoft_polls!
   foodsoft_wiki!
   gaffe
-  haml
+  haml (~> 5.0)
   haml-rails
   hashie (~> 3.4.6)
   i18n-js (~> 3.0.0.rc8)