diff --git a/R-GenomicRanges.spec b/R-GenomicRanges.spec
index 33ad8b1..6356c12 100644
--- a/R-GenomicRanges.spec
+++ b/R-GenomicRanges.spec
@@ -12,8 +12,8 @@ URL:              http://www.bioconductor.org/packages/release/bioc/html/Genomic
 Source0:          http://www.bioconductor.org/packages/release/bioc/src/contrib/%{packname}_%{version}.tar.gz
 BuildRoot:        %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
-Requires:         R-core >= 3.0.0 R-methods R-IRanges >= 1.11.26 R-BiocGenerics >= 0.7.7 R-XVector >= 0.1.3
-BuildRequires:    R-devel tex(latex) R >= 3.0.0 R-methods R-IRanges-devel >= 1.11.26 R-BiocGenerics >= 0.7.7 R-XVector >= 0.1.3
+Requires:         R-core >= 3.0.0 R-methods R-IRanges >= 1.20.3 R-BiocGenerics >= 0.7.7 R-XVector >= 0.1.3
+BuildRequires:    R-devel tex(latex) R >= 3.0.0 R-methods R-IRanges-devel >= 1.20.3 R-BiocGenerics >= 0.7.7 R-XVector >= 0.1.3
 
 %description
 The ability to efficiently store genomic annotations and alignments is