diff --git a/HISTORY.rst b/HISTORY.rst
index 9a79ab5fe9a85c76304c1fb499c4cc49fe9d25fd_SElTVE9SWS5yc3Q=..3b3a5dee917b629015f1cf38febbb5b28dbe9054_SElTVE9SWS5yc3Q= 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,6 +1,9 @@
 Release history
 ===============
 
+0.3.1 (2020-03-10)
+------------------
+
 - mjml: Fix a process crash when the mjml source is not a valid mjml document.
 
 0.3.0 (2020-03-09)
diff --git a/restapi/doc.go b/restapi/doc.go
index 9a79ab5fe9a85c76304c1fb499c4cc49fe9d25fd_cmVzdGFwaS9kb2MuZ28=..3b3a5dee917b629015f1cf38febbb5b28dbe9054_cmVzdGFwaS9kb2MuZ28= 100644
--- a/restapi/doc.go
+++ b/restapi/doc.go
@@ -10,7 +10,7 @@
 //    https
 //  Host: localhost
 //  BasePath: /api
-//  Version: 0.3.0
+//  Version: 0.3.1
 //
 //  Consumes:
 //    - application/io.orus.rednerd.v1+json
diff --git a/restapi/embedded_spec.go b/restapi/embedded_spec.go
index 9a79ab5fe9a85c76304c1fb499c4cc49fe9d25fd_cmVzdGFwaS9lbWJlZGRlZF9zcGVjLmdv..3b3a5dee917b629015f1cf38febbb5b28dbe9054_cmVzdGFwaS9lbWJlZGRlZF9zcGVjLmdv 100644
--- a/restapi/embedded_spec.go
+++ b/restapi/embedded_spec.go
@@ -33,7 +33,7 @@
   "info": {
     "description": "The Rednerd rendering server. For a list of available rendering engines\nand their options, see \u003ca href=\"/docs/engines\"\u003eRednerd Engines\u003c/a\u003e.\n",
     "title": "Rednerd API",
-    "version": "0.3.0"
+    "version": "0.3.1"
   },
   "basePath": "/api",
   "paths": {
@@ -1086,7 +1086,7 @@
   "info": {
     "description": "The Rednerd rendering server. For a list of available rendering engines\nand their options, see \u003ca href=\"/docs/engines\"\u003eRednerd Engines\u003c/a\u003e.\n",
     "title": "Rednerd API",
-    "version": "0.3.0"
+    "version": "0.3.1"
   },
   "basePath": "/api",
   "paths": {
diff --git a/swagger.yaml b/swagger.yaml
index 9a79ab5fe9a85c76304c1fb499c4cc49fe9d25fd_c3dhZ2dlci55YW1s..3b3a5dee917b629015f1cf38febbb5b28dbe9054_c3dhZ2dlci55YW1s 100644
--- a/swagger.yaml
+++ b/swagger.yaml
@@ -6,7 +6,7 @@
     and their options, see <a href="/docs/engines">Rednerd Engines</a>.
 
   title: Rednerd API
-  version: 0.3.0
+  version: 0.3.1
 consumes:
 - application/io.orus.rednerd.v1+json
 - application/json