diff --git a/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2017b-R-3.4.3.eb b/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2017b-R-3.4.3.eb
index 4096986159e..98bc5c1e699 100644
--- a/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2017b-R-3.4.3.eb
+++ b/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2017b-R-3.4.3.eb
@@ -18,8 +18,10 @@ dependencies = [
 exts_default_options = {
     'source_urls': [
         'https://bioconductor.org/packages/3.6/bioc/src/contrib/',
+        'https://bioconductor.org/packages/3.6/bioc/src/contrib/Archive/%(name)s',
         'https://bioconductor.org/packages/3.6/data/annotation/src/contrib/',
         'https://bioconductor.org/packages/3.6/data/experiment/src/contrib/',
+        'http://cran.r-project.org/src/contrib/Archive/%(name)s',  # package archive
         'https://cran.r-project.org/src/contrib/',  # current version of packages
         'https://cran.freestatistics.org/src/contrib',  # mirror alternative for current packages
     ],
diff --git a/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2018a-R-3.4.4.eb b/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2018a-R-3.4.4.eb
index b2fad84ae31..079e4a59e0f 100644
--- a/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2018a-R-3.4.4.eb
+++ b/easybuild/easyconfigs/r/R-bundle-Bioconductor/R-bundle-Bioconductor-3.6-intel-2018a-R-3.4.4.eb
@@ -18,8 +18,10 @@ dependencies = [
 exts_default_options = {
     'source_urls': [
         'https://bioconductor.org/packages/3.6/bioc/src/contrib/',
+        'https://bioconductor.org/packages/3.6/bioc/src/contrib/Archive/%(name)s',
         'https://bioconductor.org/packages/3.6/data/annotation/src/contrib/',
         'https://bioconductor.org/packages/3.6/data/experiment/src/contrib/',
+        'http://cran.r-project.org/src/contrib/Archive/%(name)s',  # package archive
         'https://cran.r-project.org/src/contrib/',  # current version of packages
         'https://cran.freestatistics.org/src/contrib',  # mirror alternative for current packages
     ],