diff --git a/pkgs/applications/office/libreoffice/src-fresh/download.nix b/pkgs/applications/office/libreoffice/src-fresh/download.nix
index e26081a02980..d956a3b08a61 100644
--- a/pkgs/applications/office/libreoffice/src-fresh/download.nix
+++ b/pkgs/applications/office/libreoffice/src-fresh/download.nix
@@ -469,11 +469,11 @@
     md5name = "b24890e2bb46e12e72a79f7e965f409f4e16466d00e1dd15d93d73ee6b592523-libjpeg-turbo-1.5.3.tar.gz";
   }
   {
-    name = "language-subtag-registry-2020-04-01.tar.bz2";
-    url = "https://dev-www.libreoffice.org/src/language-subtag-registry-2020-04-01.tar.bz2";
-    sha256 = "fb1ee0dabfd956a445fbe9f351e86a52767808558f20f4256e67fbbb3768e9da";
+    name = "language-subtag-registry-2020-09-29.tar.bz2";
+    url = "https://dev-www.libreoffice.org/src/language-subtag-registry-2020-09-29.tar.bz2";
+    sha256 = "cbe9fca811a37056560aab73e9fc9d3522b46b6785cb02db165f521bf42c230f";
     md5 = "";
-    md5name = "fb1ee0dabfd956a445fbe9f351e86a52767808558f20f4256e67fbbb3768e9da-language-subtag-registry-2020-04-01.tar.bz2";
+    md5name = "cbe9fca811a37056560aab73e9fc9d3522b46b6785cb02db165f521bf42c230f-language-subtag-registry-2020-09-29.tar.bz2";
   }
   {
     name = "JLanguageTool-1.7.0.tar.bz2";
@@ -700,11 +700,11 @@
     md5name = "66adacd705a7d19895e08eac46d1e851332adf2e736c566bef1164e7a442519d-libpagemaker-0.0.4.tar.xz";
   }
   {
-    name = "pdfium-4137.tar.bz2";
-    url = "https://dev-www.libreoffice.org/src/pdfium-4137.tar.bz2";
-    sha256 = "9a2f9bddca935a263f06c81003483473a525ccd0f4e517bc75fceb914d4c54b6";
+    name = "pdfium-4306.tar.bz2";
+    url = "https://dev-www.libreoffice.org/src/pdfium-4306.tar.bz2";
+    sha256 = "eca406d47ac7e2a84dcc86f93c08f96e591d409589e881477fa75e488e4851d8";
     md5 = "";
-    md5name = "9a2f9bddca935a263f06c81003483473a525ccd0f4e517bc75fceb914d4c54b6-pdfium-4137.tar.bz2";
+    md5name = "eca406d47ac7e2a84dcc86f93c08f96e591d409589e881477fa75e488e4851d8-pdfium-4306.tar.bz2";
   }
   {
     name = "pixman-0.34.0.tar.gz";
diff --git a/pkgs/applications/office/libreoffice/src-fresh/primary.nix b/pkgs/applications/office/libreoffice/src-fresh/primary.nix
index dbfd249901e7..c9b182647114 100644
--- a/pkgs/applications/office/libreoffice/src-fresh/primary.nix
+++ b/pkgs/applications/office/libreoffice/src-fresh/primary.nix
@@ -8,8 +8,8 @@ rec {
 
   major = "7";
   minor = "0";
-  patch = "3";
-  tweak = "1";
+  patch = "4";
+  tweak = "2";
 
   subdir = "${major}.${minor}.${patch}";
 
@@ -17,13 +17,13 @@ rec {
 
   src = fetchurl {
     url = "https://download.documentfoundation.org/libreoffice/src/${subdir}/libreoffice-${version}.tar.xz";
-    sha256 = "0b998k2dxbbj7hn3srn07fgsah236h14ncyyahamdff6h3hvqrk5";
+    sha256 = "1g9akxvm7fh6lnprnc3g184qdy8gbinhb4rb60gjpw82ip6d5acz";
   };
 
   # FIXME rename
   translations = fetchSrc {
     name = "translations";
-    sha256 = "0s3ic79q0c16hbd6r06mwkyqhw4fdfy9z3xbqvdxp7jl64cjlaj4";
+    sha256 = "1v3kpk56fm783d5wihx41jqidpclizkfxrg4n0pq95d79hdiljsl";
   };
 
   # the "dictionaries" archive is not used for LO build because we already build hunspellDicts packages from
@@ -31,6 +31,6 @@ rec {
 
   help = fetchSrc {
     name = "help";
-    sha256 = "14wjkcdmcflfcc7264jx64s6clk5rdsprx7nkbv08z0bp6ff677b";
+    sha256 = "1np9f799ww12kggl5az6piv5fi9rf737il5a5r47r4wl2li56qqb";
   };
 }