diff --git a/Cargo.lock b/Cargo.lock
index 537571ee6b542..6a32744c5d8a5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -212,9 +212,9 @@ checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
 
 [[package]]
 name = "askama"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47cbc3cf73fa8d9833727bbee4835ba5c421a0d65b72daf9a7b5d0e0f9cfb57e"
+checksum = "b79091df18a97caea757e28cd2d5fda49c6cd4bd01ddffd7ff01ace0c0ad2c28"
 dependencies = [
  "askama_derive",
  "askama_escape",
@@ -222,14 +222,14 @@ dependencies = [
 
 [[package]]
 name = "askama_derive"
-version = "0.12.1"
+version = "0.12.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c22fbe0413545c098358e56966ff22cdd039e10215ae213cfbd65032b119fc94"
+checksum = "19fe8d6cb13c4714962c072ea496f3392015f0989b1a2847bb4b2d9effd71d83"
 dependencies = [
+ "askama_parser",
  "basic-toml",
  "mime",
  "mime_guess",
- "nom",
  "proc-macro2",
  "quote",
  "serde",
@@ -242,6 +242,15 @@ version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "619743e34b5ba4e9703bba34deac3427c72507c7159f5fd030aea8cac0cfe341"
 
+[[package]]
+name = "askama_parser"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acb1161c6b64d1c3d83108213c2a2533a342ac225aabd0bda218278c2ddb00c0"
+dependencies = [
+ "nom",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
diff --git a/src/librustdoc/html/templates/item_union.html b/src/librustdoc/html/templates/item_union.html
index 8db7986fa7506..b1c1d5a63a03c 100644
--- a/src/librustdoc/html/templates/item_union.html
+++ b/src/librustdoc/html/templates/item_union.html
@@ -1,8 +1,8 @@
 <pre class="rust item-decl"><code>
-    {{ self.render_attributes_in_pre() | safe }}
-    {{ self.render_union() | safe }}
+    {{ self.render_attributes_in_pre()|safe }}
+    {{ self.render_union()|safe }}
 </code></pre>
-{{ self.document() | safe }}
+{{ self.document()|safe }}
 {% if self.fields_iter().peek().is_some() %}
     <h2 id="fields" class="fields section-header"> {# #}
         Fields<a href="#fields" class="anchor">§</a> {# #}
@@ -12,13 +12,13 @@ <h2 id="fields" class="fields section-header"> {# #}
         <span id="structfield.{{ name }}" {#+ #}
             class="{{ ItemType::StructField +}} section-header"> {# #}
             <a href="#structfield.{{ name }}" class="anchor field">§</a> {# #}
-            <code>{{ name }}: {{+ self.print_ty(ty) | safe }}</code> {# #}
+            <code>{{ name }}: {{+ self.print_ty(ty)|safe }}</code> {# #}
         </span>
         {% if let Some(stability_class) = self.stability_field(field) %}
             <span class="stab {{ stability_class }}"></span>
         {% endif %}
-        {{ self.document_field(field) | safe }}
+        {{ self.document_field(field)|safe }}
     {% endfor %}
 {% endif %}
-{{ self.render_assoc_items() | safe }}
-{{ self.document_type_layout() | safe }}
+{{ self.render_assoc_items()|safe }}
+{{ self.document_type_layout()|safe }}