diff --git a/DESCRIPTION b/DESCRIPTION
index c5cb6e8..8dac9c7 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -11,7 +11,6 @@ Author: Raivo Kolde <raivo.kolde@eesti.ee>
 Maintainer: Raivo Kolde <raivo.kolde@eesti.ee>
 Depends:
     R (>= 2.15),
-    ggplot2,
     Rcpp
 Imports:
     plyr,
@@ -19,6 +18,7 @@ Imports:
     gProfileR,
     reshape2,
     limma,
+    ggplot2,
     gtable
 Suggests:
     vegan
diff --git a/NAMESPACE b/NAMESPACE
index 6206169..863ab90 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -27,6 +27,7 @@ import(gtable)
 import(limma)
 import(plyr)
 import(reshape2)
+importFrom(ggplot2,aes)
 importFrom(ggplot2,coord_flip)
 importFrom(ggplot2,geom_bar)
 importFrom(ggplot2,geom_boxplot)
@@ -35,7 +36,9 @@ importFrom(ggplot2,ggplot)
 importFrom(ggplot2,ggplot_build)
 importFrom(ggplot2,ggplot_gtable)
 importFrom(ggplot2,layer)
+importFrom(ggplot2,position_identity)
 importFrom(ggplot2,qplot)
+importFrom(ggplot2,scale_fill_brewer)
 importFrom(ggplot2,scale_fill_discrete)
 importFrom(ggplot2,scale_fill_manual)
 importFrom(ggplot2,scale_x_continuous)
diff --git a/R/GOsummaries-package.R b/R/GOsummaries-package.R
index b4849b0..51fdd59 100644
--- a/R/GOsummaries-package.R
+++ b/R/GOsummaries-package.R
@@ -48,6 +48,9 @@
 #' @importFrom ggplot2 scale_y_continuous
 #' @importFrom ggplot2 theme
 #' @importFrom ggplot2 theme_bw
+#' @importFrom ggplot2 aes
+#' @importFrom ggplot2 position_identity
+#' @importFrom ggplot2 scale_fill_brewer
 #' 
 #' @useDynLib GOsummaries 
 #' 
diff --git a/vignettes/GOsummaries-basics.Rnw b/vignettes/GOsummaries-basics.Rnw
index b1f1fa2..a491751 100644
--- a/vignettes/GOsummaries-basics.Rnw
+++ b/vignettes/GOsummaries-basics.Rnw
@@ -18,6 +18,7 @@ BiocStyle::latex()
 <<myCodeBlock, echo=FALSE>>=
 library(GOsummaries, quietly=TRUE)
 library(vegan, quietly=TRUE)
+library(ggplot2, quietly=TRUE)
 @
 
 \title{GOsummaries basics}