diff --git a/.Rbuildignore b/.Rbuildignore
index 167864e..d1ebfbc 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -1,7 +1,7 @@
 ^.*\.Rproj$
 ^\.Rproj\.user$
 ^\.Rhistory$
-^\.gitignore$
+^.*gitignore$
 ^\.git$
 ^\.travis\.yml$
-^inst/dataignore/$
+^.*inst/dataignore/.*$
diff --git a/DESCRIPTION b/DESCRIPTION
index 4e96836..50773da 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,7 @@
 Package: prozor
 Type: Package
 Title: Minimal Protein Set Explaining Peptide Spectrum Matches
-Version: 0.2.2
-Date: 2015-12-09
+Version: 0.2.3
 Author: Witold Wolski
 Maintainer: Witold Wolski <wewolski@gmail.com>
 Description: Determine minimal protein set explaining
@@ -15,13 +14,10 @@ Imports:
     Matrix,
     doParallel,
     foreach,
-    seqinr,
     plyr,
+    seqinr,
     stringr
 URL: https://github.com/protviz/prozor
 BugReports: https://github.com/protviz/prozor/issues
 Repository: CRAN
 RoxygenNote: 6.0.1
-Suggests: knitr,
-    rmarkdown
-VignetteBuilder: knitr
diff --git a/R/zzz.R b/R/zzz.R
index 47038f1..b4af723 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -2,7 +2,7 @@
 
 .onAttach <- function(lib, pkg){
 	if(interactive()){
-		version <- packageVersion('prozor')
+		version <- utils::packageVersion('prozor')
 		packageStartupMessage("Package 'prozor' version ", version)
 		# packageStartupMessage("Type 'citation(\"prozor\")' for citing this R package in publications.")
 	  invisible()