diff --git a/DESCRIPTION b/DESCRIPTION
index 94f0fe3..c4f6244 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -2,7 +2,7 @@ Package: DeLorean
 Title: Estimates Pseudotimes for Single Cell Expression Data
 Author: John Reid <john.reid@mrc-bsu.cam.ac.uk>
 Maintainer: John Reid <john.reid@mrc-bsu.cam.ac.uk>
-Version: 1.2.3
+Version: 1.2.4
 Description: Implements the DeLorean model to estimate pseudotimes for
     single cell expression data. The DeLorean model uses a Gaussian process
     latent variable model to model uncertainty in the capture time of
@@ -11,7 +11,7 @@ Depends:
     R (>= 3.0.2),
     Rcpp (>= 0.12.0)
 Imports:
-    rstan (>= 2.10.1),
+    rstan (>= 2.12.1),
     dplyr (>= 0.4.3),
     reshape2 (>= 1.4),
     stringr (>= 0.6.2),
diff --git a/NEWS.md b/NEWS.md
index ebd96f9..5332deb 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,8 @@
+## Version 1.2.4
+- Increase border of inducing points in sparse approximations
+- Fix further Stan bug (feature?) with square root of integers
+- Update rstan requirement to 2.12.1 from bad 2.10 version: http://andrewgelman.com/2016/07/31/stan-2-11-good-stan-2-10-bad/
+
 ## Version 1.2.3
 - Update for new package versions: rstan (2.10.1) and dplyr (0.5.0).