diff --git a/pkgs/applications/science/math/R/default.nix b/pkgs/applications/science/math/R/default.nix
index f91d72ff3f63..d1b1199686f6 100644
--- a/pkgs/applications/science/math/R/default.nix
+++ b/pkgs/applications/science/math/R/default.nix
@@ -14,11 +14,11 @@ assert (!blas.isILP64) && (!lapack.isILP64);
 
 stdenv.mkDerivation rec {
   pname = "R";
-  version = "4.1.3";
+  version = "4.2.0";
 
   src = fetchurl {
     url = "https://cran.r-project.org/src/base/R-${lib.versions.major version}/${pname}-${version}.tar.gz";
-    sha256 = "sha256-Ff9bMzxhCUBgsqUunB2OxVzELdAp45yiKr2qkJUm/tY=";
+    sha256 = "sha256-OOq3cZt60JU4jwaqCQxaKyAnkZRd5g0+K7DqsfUJdIg=";
   };
 
   dontUseImakeConfigure = true;
@@ -31,6 +31,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     ./no-usr-local-search-paths.patch
+    ./test-reg-packages.patch
   ];
 
   # Test of the examples for package 'tcltk' fails in Darwin sandbox. See:
@@ -90,7 +91,7 @@ stdenv.mkDerivation rec {
   postFixup = "echo ${which} > $out/nix-support/undetected-runtime-dependencies";
 
   doCheck = true;
-  preCheck = "export TZ=CET; bin/Rscript -e 'sessionInfo()'";
+  preCheck = "export HOME=$TMPDIR; export TZ=CET; bin/Rscript -e 'sessionInfo()'";
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/applications/science/math/R/test-reg-packages.patch b/pkgs/applications/science/math/R/test-reg-packages.patch
new file mode 100644
index 000000000000..0125565a7997
--- /dev/null
+++ b/pkgs/applications/science/math/R/test-reg-packages.patch
@@ -0,0 +1,15 @@
+Upper bounds shifts due to extra warnings re. internet connectivity.
+
+diff --git a/tests/reg-packages.R b/tests/reg-packages.R
+index c9962ce..a40b0fa 100644
+--- a/tests/reg-packages.R
++++ b/tests/reg-packages.R
+@@ -260,7 +260,7 @@ stopifnot(exprs = {
+     (lenN <- length(print(iN <- grep("^[1-9][0-9]:", tlines)))) >= 2
+     iN - iw == seq_len(lenN) # these (3) lines come immediately after 'Warning',
+     ## and "related" to the some 'missing .. paren' above:
+-    8 <= print(iw - i) & iw - i <= 20 # see ~14
++    8 <= print(iw - i) & iw - i <= 22 # see ~14
+ }) ## failed in R <= 4.1.1
+
+