diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3dc188b5..a6a8167c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ Version 76:
 * BodyReader may construct from a non-const message
 * Add serializer::get
 * Add serializer::chunked
+* Serializer members are not const
 
 API Changes:
 
diff --git a/include/beast/http/impl/write.ipp b/include/beast/http/impl/write.ipp
index 6a9287c5..66da2d17 100644
--- a/include/beast/http/impl/write.ipp
+++ b/include/beast/http/impl/write.ipp
@@ -177,7 +177,7 @@ struct serializer_is_header_done
         class Fields, class Decorator>
     bool
     operator()(serializer<isRequest, Body,
-        Fields, Decorator> const& sr) const
+        Fields, Decorator>& sr) const
     {
         return sr.is_header_done();
     }
@@ -189,7 +189,7 @@ struct serializer_is_done
         class Fields, class Decorator>
     bool
     operator()(serializer<isRequest, Body,
-        Fields, Decorator> const& sr) const
+        Fields, Decorator>& sr) const
     {
         return sr.is_done();
     }
diff --git a/include/beast/http/serializer.hpp b/include/beast/http/serializer.hpp
index ef7b30f2..b5668f19 100644
--- a/include/beast/http/serializer.hpp
+++ b/include/beast/http/serializer.hpp
@@ -318,7 +318,7 @@ public:
 
     /// Returns the serialized buffer size limit
     std::size_t
-    limit() const
+    limit()
     {
         return limit_;
     }
@@ -344,7 +344,7 @@ public:
     /** Returns `true` if we will pause after writing the complete header.
     */
     bool
-    split() const
+    split()
     {
         return split_;
     }
@@ -368,7 +368,7 @@ public:
         serialized header octets have been retrieved.
     */
     bool
-    is_header_done() const
+    is_header_done()
     {
         return header_done_;
     }
@@ -380,7 +380,7 @@ public:
         successfully retrieved.
     */
     bool
-    is_done() const
+    is_done()
     {
         return s_ == do_complete;
     }