diff --git a/python-canonicaljson.changes b/python-canonicaljson.changes
index fc8b1b0..ec466c4 100644
--- a/python-canonicaljson.changes
+++ b/python-canonicaljson.changes
@@ -1,3 +1,19 @@
+-------------------------------------------------------------------
+Tue Sep  8 20:32:44 UTC 2020 - Marcus Rueckert <mrueckert@suse.de>
+
+- Update to 1.4.0: 
+  - Fix producing non-standard JSON for Infinity, -Infinity, and
+    NaN. This could cause errors when encoding objects into
+    canonical JSON that previously used to work, but were
+    incompatible with JSON implementations in other languages.
+  - Use UTF-8 to fix ASCII encoding errors when data containing
+    Unicode was attempted to be pretty-printed.
+- Update to 1.3.0:
+  - The minimum version of simplejson was bumped to 3.14.0.
+  - Obsolete workaround for slow encoding of Unicode characters was
+    removed.
+  - New APIs were added to iteratively encode JSON.
+
 -------------------------------------------------------------------
 Thu Aug 13 21:28:31 UTC 2020 - Marcus Rueckert <mrueckert@suse.de>
 
diff --git a/python-canonicaljson.spec b/python-canonicaljson.spec
index a06fcbf..52ad181 100644
--- a/python-canonicaljson.spec
+++ b/python-canonicaljson.spec
@@ -28,7 +28,7 @@
 %define         github_user matrix-org
 %define         short_name canonicaljson
 Name:           python-%{short_name}%{psuffix}
-Version:        1.2.0
+Version:        1.4.0
 Release:        0
 Summary:        Canonical JSON for Python
 License:        Apache-2.0
@@ -37,11 +37,11 @@ URL:            https://github.com/matrix-org/python-canonicaljson
 Source:         https://github.com/matrix-org/python-canonicaljson/archive/v%{version}.tar.gz
 BuildRequires:  %{python_module frozendict >= 1.0}
 BuildRequires:  %{python_module setuptools}
-BuildRequires:  %{python_module simplejson}
+BuildRequires:  %{python_module simplejson >= 3.14.0}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-frozendict >= 1.0
-Requires:       python-simplejson
+Requires:       python-simplejson >= 3.14.0
 Requires:       python-six
 BuildArch:      noarch
 %if %{with test}
diff --git a/v1.2.0.tar.gz b/v1.2.0.tar.gz
deleted file mode 100644
index e5030f9..0000000
--- a/v1.2.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:ad0a40fb5e356643f4f96d347fd2736ac279adbb2fa02bbcc1feb04156b66ad5
-size 1326903
diff --git a/v1.4.0.tar.gz b/v1.4.0.tar.gz
new file mode 100644
index 0000000..89a8d85
--- /dev/null
+++ b/v1.4.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f6d05222afdff5bc4c5e82318ab75656d1402074376a410b32ff22171090632e
+size 11135