diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 4338bd6f9..f56775c99 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,18 @@
+Ndcube v1.3.1 (2020-04-17)
+==========================
+
+Bug Fixes
+---------
+
+- Fix NDCollection.aligned_dimensions so it doesnt crash when components of collection are NDCubeSequences. (`#264 <https://github.com/sunpy/ndcube/pull/264>`__)
+
+
+Trivial/Internal Changes
+------------------------
+
+- Simplify and speed up implementation of NDCubeSequence slicing. (`#251 <https://github.com/sunpy/ndcube/pull/251>`__)
+
+
 Ndcube v1.3.0 (2020-03-27)
 ==========================
 
diff --git a/changelog/251.trivial.rst b/changelog/251.trivial.rst
deleted file mode 100644
index dc5e35050..000000000
--- a/changelog/251.trivial.rst
+++ /dev/null
@@ -1 +0,0 @@
-Simplify and speed up implementation of NDCubeSequence slicing.
\ No newline at end of file
diff --git a/changelog/264.bugfix.rst b/changelog/264.bugfix.rst
deleted file mode 100644
index b85971c8b..000000000
--- a/changelog/264.bugfix.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix NDCollection.aligned_dimensions so it doesnt crash when components of collection are NDCubeSequences.