diff --git a/pkgs/data/fonts/source-code-pro/default.nix b/pkgs/data/fonts/source-code-pro/default.nix
index c9518b78a65..eaf82d412a1 100644
--- a/pkgs/data/fonts/source-code-pro/default.nix
+++ b/pkgs/data/fonts/source-code-pro/default.nix
@@ -1,21 +1,21 @@
 { lib, fetchzip }:
 
 let
-  version = "2.030";
+  version = "2.038";
 in fetchzip {
   name = "source-code-pro-${version}";
 
-  url = "https://github.com/adobe-fonts/source-code-pro/archive/2.030R-ro/1.050R-it.zip";
+  url = "https://github.com/adobe-fonts/source-code-pro/releases/download/${version}R-ro%2F1.058R-it%2F1.018R-VAR/OTF-source-code-pro-${version}R-ro-1.058R-it.zip";
 
   postFetch = ''
     mkdir -p $out/share/fonts
     unzip -j $downloadedFile \*.otf -d $out/share/fonts/opentype
   '';
 
-  sha256 = "0d8qwzjgnz264wlm4qim048z3236z4hbblvc6yplw13f6b65j6fv";
+  sha256 = "027cf62zj27q7l3d4sqzdfgz423lzysihdg8cvmkk6z910a1v368";
 
   meta = {
-    description = "A set of monospaced OpenType fonts designed for coding environments";
+    description = "Monospaced font family for user interface and coding environments";
     maintainers = with lib.maintainers; [ relrod ];
     platforms = with lib.platforms; all;
     homepage = "https://adobe-fonts.github.io/source-code-pro/";
diff --git a/pkgs/data/fonts/source-sans-pro/default.nix b/pkgs/data/fonts/source-sans/default.nix
similarity index 55%
rename from pkgs/data/fonts/source-sans-pro/default.nix
rename to pkgs/data/fonts/source-sans/default.nix
index 7d5c7679ad8..c16d0d2b8b4 100644
--- a/pkgs/data/fonts/source-sans-pro/default.nix
+++ b/pkgs/data/fonts/source-sans/default.nix
@@ -1,11 +1,11 @@
 { lib, fetchzip }:
 
 let
-  version = "3.006";
+  version = "3.046";
 in fetchzip {
-  name = "source-sans-pro-${version}";
+  name = "source-sans-${version}";
 
-  url = "https://github.com/adobe-fonts/source-sans-pro/releases/download/${version}R/source-sans-pro-${version}R.zip";
+  url = "https://github.com/adobe-fonts/source-sans/archive/${version}R.zip";
 
   postFetch = ''
     mkdir -p $out/share/fonts/{opentype,truetype,variable}
@@ -14,11 +14,11 @@ in fetchzip {
     unzip -j $downloadedFile "*/VAR/*.otf" -d $out/share/fonts/variable
   '';
 
-  sha256 = "11jd50cqiq2s0z39rclg73iiw2j5yzgs1glfs9psw5wbbisgysmr";
+  sha256 = "1wxdinnliq0xqbjrs0sqykwaggkmyqawfq862d9xn05g1pnxda94";
 
   meta = with lib; {
-    homepage = "https://adobe-fonts.github.io/source-sans-pro/";
-    description = "A set of OpenType fonts designed by Adobe for UIs";
+    homepage = "https://adobe-fonts.github.io/source-sans/";
+    description = "Sans serif font family for user interface environments";
     license = licenses.ofl;
     platforms = platforms.all;
     maintainers = with maintainers; [ ttuegel ];
diff --git a/pkgs/data/fonts/source-serif-pro/default.nix b/pkgs/data/fonts/source-serif-pro/default.nix
deleted file mode 100644
index 86a45b80efd..00000000000
--- a/pkgs/data/fonts/source-serif-pro/default.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-{ lib, fetchzip }:
-
-let
-  version = "3.000";
-in fetchzip {
-  name = "source-serif-pro-${version}";
-
-  url = "https://github.com/adobe-fonts/source-serif-pro/releases/download/${version}R/source-serif-pro-${version}R.zip";
-
-  postFetch = ''
-    mkdir -p $out/share/fonts/{opentype,truetype,variable}
-    unzip -j $downloadedFile "OTF/*.otf" -d $out/share/fonts/opentype
-    unzip -j $downloadedFile "TTF/*.ttf" -d $out/share/fonts/truetype
-    unzip -j $downloadedFile "VAR/*.otf" -d $out/share/fonts/variable
-  '';
-
-  sha256 = "06yp8y79mqk02qzp81h8zkmzqqlhicgrkwmzkd0bm338xh8grsiz";
-
-  meta = with lib; {
-    homepage = "https://adobe-fonts.github.io/source-serif-pro/";
-    description = "A set of OpenType fonts to complement Source Sans Pro";
-    license = licenses.ofl;
-    platforms = platforms.all;
-    maintainers = with maintainers; [ ttuegel ];
-  };
-}
-
diff --git a/pkgs/data/fonts/source-serif/default.nix b/pkgs/data/fonts/source-serif/default.nix
new file mode 100644
index 00000000000..855fe7e6e9e
--- /dev/null
+++ b/pkgs/data/fonts/source-serif/default.nix
@@ -0,0 +1,26 @@
+{ lib, fetchzip }:
+
+let
+  version = "4.004";
+in fetchzip {
+  name = "source-serif-${version}";
+
+  url = "https://github.com/adobe-fonts/source-serif/releases/download/${version}R/source-serif-${version}.zip";
+
+  postFetch = ''
+    mkdir -p $out/share/fonts/{opentype,truetype,variable}
+    unzip -j $downloadedFile "*/OTF/*.otf" -d $out/share/fonts/opentype
+    unzip -j $downloadedFile "*/TTF/*.ttf" -d $out/share/fonts/truetype
+    unzip -j $downloadedFile "*/VAR/*.otf" -d $out/share/fonts/variable
+  '';
+
+  sha256 = "06814hcp20abca6p0ii61f23g6h1ibqyhq30lsva59wbwx5iha0h";
+
+  meta = with lib; {
+    homepage = "https://adobe-fonts.github.io/source-serif/";
+    description = "Typeface for setting text in many sizes, weights, and languages. Designed to complement Source Sans";
+    license = licenses.ofl;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ ttuegel ];
+  };
+}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index e28d75c8421..73fff60ff45 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -885,6 +885,8 @@ mapAliases ({
   source-han-serif-korean = source-han-serif;
   source-han-serif-simplified-chinese = source-han-serif;
   source-han-serif-traditional-chinese = source-han-serif;
+  source-sans-pro = source-sans; # added 2021-10-20
+  source-serif-pro = source-serif; # added 2021-10-20
 
   net_snmp = net-snmp; # added 2019-12-21
   oracleXE = throw "oracleXE has been removed, as it's heavily outdated and unmaintained."; # added 2020-10-09
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index eeaa3efa328..7429a603407 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -23355,9 +23355,9 @@ with pkgs;
 
   source-code-pro = callPackage ../data/fonts/source-code-pro {};
 
-  source-sans-pro = callPackage ../data/fonts/source-sans-pro { };
+  source-sans = callPackage ../data/fonts/source-sans { };
 
-  source-serif-pro = callPackage ../data/fonts/source-serif-pro { };
+  source-serif = callPackage ../data/fonts/source-serif { };
 
   source-han-code-jp = callPackage ../data/fonts/source-han-code-jp { };