diff --git a/pkgs/development/compilers/gcc-arm-embedded/10/default.nix b/pkgs/development/compilers/gcc-arm-embedded/10/default.nix
index 943ddd100a21..88dd4d37f7b9 100644
--- a/pkgs/development/compilers/gcc-arm-embedded/10/default.nix
+++ b/pkgs/development/compilers/gcc-arm-embedded/10/default.nix
@@ -7,6 +7,7 @@
 stdenv.mkDerivation rec {
   pname = "gcc-arm-embedded";
   version = "10-2020-q4-major";
+  numVersion = "10.2.1";
   subdir = "10-2020q4";
 
   suffix = {
diff --git a/pkgs/development/compilers/gcc-arm-embedded/6/default.nix b/pkgs/development/compilers/gcc-arm-embedded/6/default.nix
index 266863d95b2e..6dd6ab027f1a 100644
--- a/pkgs/development/compilers/gcc-arm-embedded/6/default.nix
+++ b/pkgs/development/compilers/gcc-arm-embedded/6/default.nix
@@ -7,6 +7,7 @@
 stdenv.mkDerivation rec {
   pname = "gcc-arm-embedded";
   version = "6-2017-q2-update";
+  numVersion = "6.3.1";
   subdir = "6-2017q2";
 
   suffix = {
diff --git a/pkgs/development/compilers/gcc-arm-embedded/7/default.nix b/pkgs/development/compilers/gcc-arm-embedded/7/default.nix
index 4f2135446f61..d2ff1c875508 100644
--- a/pkgs/development/compilers/gcc-arm-embedded/7/default.nix
+++ b/pkgs/development/compilers/gcc-arm-embedded/7/default.nix
@@ -7,6 +7,7 @@
 stdenv.mkDerivation rec {
   pname = "gcc-arm-embedded";
   version = "7-2018-q2-update";
+  numVersion = "7.3.1";
   subdir = "7-2018q2";
 
   suffix = {
diff --git a/pkgs/development/compilers/gcc-arm-embedded/8/default.nix b/pkgs/development/compilers/gcc-arm-embedded/8/default.nix
index 2d85113527c0..4fbc58f15a8d 100644
--- a/pkgs/development/compilers/gcc-arm-embedded/8/default.nix
+++ b/pkgs/development/compilers/gcc-arm-embedded/8/default.nix
@@ -7,6 +7,7 @@
 stdenv.mkDerivation rec {
   pname = "gcc-arm-embedded";
   version = "8-2019-q3-update";
+  numVersion = "8.3.1";
   subdir = "8-2019q3/RC1.1";
 
   suffix = {
diff --git a/pkgs/development/compilers/gcc-arm-embedded/9/default.nix b/pkgs/development/compilers/gcc-arm-embedded/9/default.nix
index 944d7c7b1593..073dc10dd44c 100644
--- a/pkgs/development/compilers/gcc-arm-embedded/9/default.nix
+++ b/pkgs/development/compilers/gcc-arm-embedded/9/default.nix
@@ -7,6 +7,7 @@
 stdenv.mkDerivation rec {
   pname = "gcc-arm-embedded";
   version = "9-2020-q2-update";
+  numVersion = "9.3.1";
   subdir = "9-2020q2";
 
   suffix = {