Fix issue with haml version

middleman/middleman#2569

Gemfile

@@ -7,6 +7,7 @@ gem 'middleman-livereload'
 
 gem 'webrick'
 gem 'slim'
+gem 'haml', '~> 5.0'
 
 gem 'tzinfo-data', platforms: [:mswin, :x64_mingw, :mingw, :jruby]
 gem 'wdm', '~> 0.1', platforms: [:mswin, :x64_mingw, :mingw]

Gemfile.lock

@@ -1,67 +1,68 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.4.4)
+    activesupport (6.1.7)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
-    autoprefixer-rails (9.8.6.5)
-      execjs
-    backports (3.18.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+      zeitwerk (~> 2.3)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
+    autoprefixer-rails (10.4.7.0)
+      execjs (~> 2)
+    backports (3.23.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.7)
+    concurrent-ruby (1.1.10)
     contracts (0.13.0)
-    dotenv (2.7.6)
-    em-websocket (0.5.2)
+    dotenv (2.8.1)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
+      http_parser.rb (~> 0)
     erubis (2.7.0)
     eventmachine (1.2.7)
-    execjs (2.7.0)
-    fast_blank (1.0.0)
-    fastimage (2.2.0)
+    execjs (2.8.1)
+    fast_blank (1.0.1)
+    fastimage (2.2.6)
     ffi (1.15.5)
-    haml (5.2.1)
+    haml (5.2.2)
       temple (>= 0.8.0)
       tilt
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
     hashie (3.6.0)
-    http_parser.rb (0.6.0)
-    i18n (0.9.5)
+    http_parser.rb (0.8.0)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
-    kramdown (2.3.1)
+    kramdown (2.4.0)
       rexml
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     memoist (0.16.2)
-    middleman (4.3.11)
+    middleman (4.4.2)
       coffee-script (~> 2.2)
       haml (>= 4.0.5)
       kramdown (>= 2.3.0)
-      middleman-cli (= 4.3.11)
-      middleman-core (= 4.3.11)
-    middleman-autoprefixer (2.10.1)
-      autoprefixer-rails (~> 9.1)
-      middleman-core (>= 3.3.3)
+      middleman-cli (= 4.4.2)
+      middleman-core (= 4.4.2)
+    middleman-autoprefixer (3.0.0)
+      autoprefixer-rails (~> 10.0)
+      middleman-core (>= 4.0.0)
     middleman-blog (4.0.3)
       addressable (~> 2.3)
       middleman-core (>= 4.0.0)
       tzinfo (>= 0.3.0)
-    middleman-cli (4.3.11)
+    middleman-cli (4.4.2)
       thor (>= 0.17.0, < 2.0)
-    middleman-core (4.3.11)
-      activesupport (>= 4.2, < 6.0)
-      addressable (~> 2.3)
+    middleman-core (4.4.2)
+      activesupport (>= 6.1, < 7.0)
+      addressable (~> 2.4)
       backports (~> 3.6)
-      bundler
+      bundler (~> 2.0)
       contracts (~> 0.13.0)
       dotenv
       erubis
@@ -70,33 +71,35 @@ GEM
       fastimage (~> 2.0)
       hamster (~> 3.0)
       hashie (~> 3.4)
-      i18n (~> 0.9.0)
+      i18n (~> 1.6.0)
       listen (~> 3.0.0)
       memoist (~> 0.14)
-      padrino-helpers (~> 0.13.0)
+      padrino-helpers (~> 0.15.0)
       parallel
       rack (>= 1.4.5, < 3)
       sassc (~> 2.0)
       servolux
       tilt (~> 2.0.9)
+      toml
       uglifier (~> 3.0)
-    middleman-livereload (3.4.6)
+      webrick
+    middleman-livereload (3.4.7)
       em-websocket (~> 0.5.1)
       middleman-core (>= 3.3)
       rack-livereload (~> 0.3.15)
-    minitest (5.14.2)
-    padrino-helpers (0.13.3.4)
-      i18n (~> 0.6, >= 0.6.7)
-      padrino-support (= 0.13.3.4)
+    minitest (5.16.3)
+    padrino-helpers (0.15.1)
+      i18n (>= 0.6.7, < 2)
+      padrino-support (= 0.15.1)
       tilt (>= 1.4.1, < 3)
-    padrino-support (0.13.3.4)
-      activesupport (>= 3.1)
-    parallel (1.20.1)
-    public_suffix (4.0.6)
-    rack (2.2.3)
+    padrino-support (0.15.1)
+    parallel (1.22.1)
+    parslet (2.0.0)
+    public_suffix (5.0.0)
+    rack (2.2.4)
     rack-livereload (0.3.17)
       rack
-    rb-fsevent (0.10.4)
+    rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.5)
@@ -107,19 +110,22 @@ GEM
       temple (>= 0.7.6, < 0.9)
       tilt (>= 2.0.6, < 2.1)
     temple (0.8.2)
-    thor (1.0.1)
-    thread_safe (0.3.6)
-    tilt (2.0.10)
-    tzinfo (1.2.8)
-      thread_safe (~> 0.1)
+    thor (1.2.1)
+    tilt (2.0.11)
+    toml (0.3.0)
+      parslet (>= 1.8.0, < 3.0.0)
+    tzinfo (2.0.5)
+      concurrent-ruby (~> 1.0)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
     webrick (1.7.0)
+    zeitwerk (2.6.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  haml (~> 5.0)
   middleman
   middleman-autoprefixer
   middleman-blog