diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,11 @@
 
+50200.3.1
+=========
+
+Bug fixes:
+ * Matterhorn now correctly handles server API responses with
+   Content-type parameters (#496).
+
 50200.3.0
 =========
 
diff --git a/matterhorn.cabal b/matterhorn.cabal
--- a/matterhorn.cabal
+++ b/matterhorn.cabal
@@ -1,5 +1,5 @@
 name:                matterhorn
-version:             50200.3.0
+version:             50200.3.1
 synopsis:            Terminal client for the Mattermost chat system
 description:         This is a terminal client for the Mattermost chat
                      system. Please see the README for a list of
@@ -120,7 +120,7 @@
                        NoImplicitPrelude
   ghc-options:         -Wall -threaded -with-rtsopts=-I0 -Wcompat
   build-depends:       base                 >=4.8     && <5
-                     , mattermost-api       == 50200.1.3
+                     , mattermost-api       == 50200.1.4
                      , base-compat          >= 0.9    && < 0.11
                      , unordered-containers >= 0.2    && < 0.3
                      , containers           >= 0.5.7  && < 0.7
@@ -194,8 +194,8 @@
                     , filepath             >= 1.4    && < 1.5
                     , hashable             >= 1.2    && < 1.3
                     , Hclip                >= 3.0    && < 3.1
-                    , mattermost-api       == 50200.1.3
-                    , mattermost-api-qc    == 50200.1.3
+                    , mattermost-api       == 50200.1.4
+                    , mattermost-api-qc    == 50200.1.4
                     , microlens-platform   >= 0.3    && < 0.4
                     , mtl                  >= 2.2    && < 2.3
                     , process              >= 1.4    && < 1.7