diff --git a/lib/tip_tap/html_renderable.rb b/lib/tip_tap/html_renderable.rb
index ab389fd..012f235 100644
--- a/lib/tip_tap/html_renderable.rb
+++ b/lib/tip_tap/html_renderable.rb
@@ -58,12 +58,12 @@ def to_html
     end
 
     def html_attributes
-      {style: inline_styles, class: html_class_name}.reject { |key, value| value.blank?}
+      {style: inline_styles, class: html_class_name}.reject { |key, value| value.blank? }
     end
 
     def inline_styles
       styles = []
-      styles << "text-align: #{attrs['textAlign']};" if attrs["textAlign"]
+      styles << "text-align: #{attrs["textAlign"]};" if attrs["textAlign"]
       styles.join(" ")
     end
   end
diff --git a/spec/tip_tap/nodes/heading_spec.rb b/spec/tip_tap/nodes/heading_spec.rb
index 0a34942..e7fd882 100644
--- a/spec/tip_tap/nodes/heading_spec.rb
+++ b/spec/tip_tap/nodes/heading_spec.rb
@@ -14,7 +14,7 @@
 
     context "when the textAlign attribute is present" do
       it "returns a tag with the specified text alignment style" do
-        node = TipTap::Nodes::Heading.from_json({content: [], attrs: {'textAlign' => 'center', level: 2}})
+        node = TipTap::Nodes::Heading.from_json({content: [], attrs: {"textAlign" => "center", :level => 2}})
         html = node.to_html
 
         expect(html).to be_a(String)
diff --git a/spec/tip_tap/nodes/paragraph_spec.rb b/spec/tip_tap/nodes/paragraph_spec.rb
index 229d007..cf361a9 100644
--- a/spec/tip_tap/nodes/paragraph_spec.rb
+++ b/spec/tip_tap/nodes/paragraph_spec.rb
@@ -14,7 +14,7 @@
 
     context "when the textAlign attribute is present" do
       it "returns a p tag with the specified text alignment style" do
-        node = TipTap::Nodes::Paragraph.from_json({content: [], attrs: {'textAlign' => 'center'}})
+        node = TipTap::Nodes::Paragraph.from_json({content: [], attrs: {"textAlign" => "center"}})
         html = node.to_html
 
         expect(html).to be_a(String)