diff --git a/ghc-pandoc-types.changes b/ghc-pandoc-types.changes
index f03a9ff..a91ab56 100644
--- a/ghc-pandoc-types.changes
+++ b/ghc-pandoc-types.changes
@@ -1,3 +1,44 @@
+-------------------------------------------------------------------
+Mon May 14 17:02:11 UTC 2018 - psimons@suse.com
+
+- Update pandoc-types to version 1.17.4.2 revision 1.
+  * Import Semigroups when needed rather than using CPP.
+  * Bump criterion upper bound.
+  * Add Semigroup instances for Pandoc, Meta, Inlines, Blocks
+    (if base >= 4.9).  This is needed for the library to compile
+    with ghc 8.4.
+  * Bumped criterion upper bound.
+  * Bumped upper bounds for criterion and QuickCheck.
+  * Added Walkable instances for `[Inline] Inline` and `[Block] Block`.
+  * Provide default implementation for walk (Albert Krewinkel).
+    The implementations for `walk` and `walkM` are very similar, so a
+    default method is provided which implements the former in terms of the
+    latter. This change should not affect performance, as the `Identity`
+    functor, which is used in the default definition, is a newtype that
+    should be eliminated at compile time.  (This requires a dependency
+    on transformers for ghc 7.8.x.)
+  * Force optimizations when compiling Walk module (Albert Krewinkel).
+  * Add `Applicative m` to the context of walkM (Albert Krewinkel).
+    The acceptance of AMP makes this a natural change.
+  * Add `Walkable [Block]` and `Walkable [Inline]` instances (Albert
+    Krewinkel).
+  * Factored out duplicate code in Walk.
+  * Added benchmark.
+  * Text.Pandoc.JSON: Use `walk` instead of `bottomUp` in the
+    `ToJSONFilter` instance for `a -> [a]`.  Note that behavior will be
+    slightly different, since bottomUp's treatment of a function `[a] -> [a]`
+    is to apply it to each sublist of a list, while walk applies it only to
+    maximal sublists.  Usually the latter behavior is what is wanted, and the
+    former can be simulated when needed.  But there may be existing filters
+    that need to be rewritten in light of the new behavior.
+  * Better consistency in simpleTable and table (jgm/pandoc#3648).
+    If `headers` is empty, we populate it with empty cells, using the rows
+    to determine number of columns.  We also ensure that there are numcols
+    alignments and column widths.
+  * Make sure Div and Span occur in Arbitrary instances.
+  * Bump dependency upper bounds.
+  * Removed unused mapConst.
+
 -------------------------------------------------------------------
 Thu Aug  3 15:38:38 UTC 2017 - psimons@suse.com