diff --git a/ComplementaryScripts/Functions/increaseVersion.m b/ComplementaryScripts/Functions/increaseVersion.m
new file mode 100644
index 00000000..40825b43
--- /dev/null
+++ b/ComplementaryScripts/Functions/increaseVersion.m
@@ -0,0 +1,63 @@
+function increaseVersion(bumpType)
+% increaseVersion
+%
+%   Increase version for GEM respositories
+%
+%   Usage: function increaseVersion(bumpType)
+%
+%   Benjamín J. Sánchez, 2018-07
+%   Hao Wang, 2018-09-18
+%
+
+%Check if in master:
+currentBranch = git('rev-parse --abbrev-ref HEAD');
+if ~strcmp(currentBranch,'master')
+    error('ERROR: not in master')
+end
+
+%Bump version number:
+oldModel   = load('../../ModelFiles/mat/humanGEM.mat');
+oldVersion = oldModel.ihuman.version
+oldVersion = str2double(strsplit(oldVersion,'.'));
+newVersion = oldVersion;
+switch bumpType
+    case 'major'
+        newVersion(1) = newVersion(1) + 1;
+        newVersion(2) = 0;
+        newVersion(3) = 0;
+    case 'minor'
+        newVersion(2) = newVersion(2) + 1;
+        newVersion(3) = 0;
+    case 'patch'
+        newVersion(3) = newVersion(3) + 1;
+    otherwise
+        error('ERROR: invalid input. Use "major", "minor" or "patch"')
+end
+newVersion = num2str(newVersion,'%d.%d.%d');
+
+%Check if history has been updated:
+%fid     = fopen('../../history.md','r');
+%history = fscanf(fid,'%s');
+%fclose(fid);
+%if ~contains(history,['human' newVersion ':'])
+%    error('ERROR: update history.md first')
+%end
+%To be included
+
+%Load model:
+%ihuman = importModel('../../ModelFiles/xml/humanGEM.xml');
+
+%Include tag and save model:
+ihuman.version = newVersion;
+
+%Store model as .mat:
+save('../../ModelFiles/mat/humanGEM.mat','ihuman');
+%deal with other formats later
+%exportForGit(ihuman,'humanGEM','..',{'mat', 'txt', 'xlsx', 'xml', 'yml'});
+
+%Update version file:
+fid = fopen('../../version.txt','wt');
+fprintf(fid,newVersion);
+fclose(fid);
+
+end