diff --git a/pkgs/applications/science/electronics/kicad/base.nix b/pkgs/applications/science/electronics/kicad/base.nix
index 2f4fd63574b0..961519bad19b 100644
--- a/pkgs/applications/science/electronics/kicad/base.nix
+++ b/pkgs/applications/science/electronics/kicad/base.nix
@@ -68,7 +68,6 @@ stdenv.mkDerivation rec {
   # tagged releases don't have "unknown"
   # kicad nightlies use git describe --dirty
   # nix removes .git, so its approximated here
-  # "6.99.0" doesn't have "-unknown", yet; so leaving this in case it returns
   postPatch = ''
     substituteInPlace CMakeModules/KiCadVersion.cmake \
       --replace "unknown" "${builtins.substring 0 10 src.rev}" \
@@ -105,7 +104,7 @@ stdenv.mkDerivation rec {
   ++ optionals (withI18n) [
     "-DKICAD_BUILD_I18N=ON"
   ]
-  ++ optionals (!withPCM) [
+  ++ optionals (!withPCM && stable) [
     "-DKICAD_PCM=OFF"
   ];
 
diff --git a/pkgs/applications/science/electronics/kicad/versions.nix b/pkgs/applications/science/electronics/kicad/versions.nix
index 5fed12b0027b..91e82772a7de 100644
--- a/pkgs/applications/science/electronics/kicad/versions.nix
+++ b/pkgs/applications/science/electronics/kicad/versions.nix
@@ -25,23 +25,23 @@
   };
   "kicad-unstable" = {
     kicadVersion = {
-      version =			"2021-12-23";
+      version =			"2022-01-13";
       src = {
-        rev =			"21eb92821866d558acd9e737b643b300a8b18202";
-        sha256 =		"01hg0byp60xzgz0xxfwvyq1hbvbllsys6lx9yfj27d3qjc3bdk42";
+        rev =			"33a4c9b08e040a17daefae9069fdf834063555b4";
+        sha256 =		"1ma0i0vgvdsjrmlfzdi34byly7n1vsaynwp9f1hny4s1m53nirha";
       };
     };
     libVersion = {
-      version =			"2021-12-25";
+      version =			"2022-01-13";
       libSources = {
-        symbols.rev =		"125a2e736504e776e4c6fb7f5131efad75edf245";
-        symbols.sha256 =	"0wjk464l60xknvgc9d870901lqnx296dw7amlh3wg0wf78izarfr";
-        templates.rev =		"8c9ff3dadb9c75cf2932f11c09a46c0c9d84784b";
-        templates.sha256 =	"0vbjy1v5923942ma0rqcp1dhylhxk1m4vyfxjxw13sizkrpmlwr1";
-        footprints.rev =	"ac8de318d8ef7b3eb64c78c6c2650b7b085f3271";
-        footprints.sha256 =	"0jv2plwzhhkfx7a2zankkjkbfzjxv43ab8rqpxzqfq2fnx83q6r5";
-        packages3d.rev =	"1080b6e565e56bae9be46db2278a1542092d7a2d";
-        packages3d.sha256 =	"0vwcbzq42hzjl4f0zjaswmiff1x59hv64g5n00mx1gl0gwngnyla";
+        symbols.rev =		"e3b198d827817b79fb8a6df07f0cfc1cb9140edf";
+        symbols.sha256 =	"1azjx1bmxaz8bniyw75lq60mc8hvay00jn9qdc2zp7isy3c9ibp0";
+        templates.rev =		"a27d83f0a20f0be0c1ab04b139a0c518da51a5d4";
+        templates.sha256 =	"13h9ly6amiwm7zkwa2fd9730kh295ls8j95fszlfjp9rczv2yyzm";
+        footprints.rev =	"a939c691f1c515d6830e54cf035a420de3e5a92c";
+        footprints.sha256 =	"13g6y1l95znz6ixc4dpqsxp3icrzs951xpabnzr5znw42577gm9j";
+        packages3d.rev =	"196a26294d8e501b0e8b06c1df1abae0ebe23051";
+        packages3d.sha256 =	"0ywlk00dfwv7hc494finmazdh3g1yx0ir7bvnd8zp6cq4ql0nwl4";
       };
     };
   };