diff --git a/build_info.json b/build_info.json
index 8536dc1..d35a124 100644
--- a/build_info.json
+++ b/build_info.json
@@ -1,8 +1,8 @@
 {
     "build_time": "",
     "source files": {
-        "version": "v2.9-12-g8583c50",
-        "commit": "8583c50c595665f13b47a8f55033529d885745d4",
+        "version": "v2.9-13-g004413d",
+        "commit": "004413d6747c75bc8bf2b033a639953458339c53",
         "dirty": false
     },
     "pytex": {
@@ -377,12 +377,12 @@
         {
             "name": "math/categories/mkessler-categories.sty",
             "source file": "math/categories/categories.pysty3",
-            "build time": "2022/01/30 23:48",
-            "source version": "v2.8.1-9-g4bda829",
-            "source commit hash": "4bda829518c07d985656547cf897712db361160e",
+            "build time": "2022/06/07 19:16",
+            "source version": "v2.9-13-g004413d",
+            "source commit hash": "004413d6747c75bc8bf2b033a639953458339c53",
             "pytex version": "v1.2.0-31-gc9bb0e8",
             "pytex commit hash": "c9bb0e87c91beae3e17a829603e4459cf804ec51",
-            "md5sum": "6c81947425239defb5c28cdda6082819",
+            "md5sum": "cb5c9c39376af8d87758b7ad4c5fe18c",
             "dirty": false
         },
         {
diff --git a/math/categories/mkessler-categories.sty b/math/categories/mkessler-categories.sty
index d29fd10..12bbe5a 100644
--- a/math/categories/mkessler-categories.sty
+++ b/math/categories/mkessler-categories.sty
@@ -31,7 +31,7 @@
 % 
 % Build details:
 %   PyTeX version: v1.2.0-31-gc9bb0e8 (commit c9bb0e8)
-%   Source code version: v2.8.1-9-g4bda829 (commit 4bda829)
+%   Source code version: v2.9-13-g004413d (commit 004413d)
 % 
 % This LaTeX package is free software and is dual-licensed
 % under the LPPLv1.3c and the GPLv3 licenses.
@@ -46,7 +46,7 @@
 % at the Git repository for further information.
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-\ProvidesExplPackage{mkessler-categories}{2022/01/30}{2.8.1-9-g4bda829}{Definitions of categories with automatic indexing}
+\ProvidesExplPackage{mkessler-categories}{2022/06/07}{2.9-13-g004413d}{Definitions of categories with automatic indexing}
 
 %% Wrapper commands specific for defining categories
 
@@ -58,7 +58,7 @@
 
 \NewDocumentCommand{\category}{ m }
   {
-    \operatorname{\textbf{#1}}
+    \operatorname{\textup{\textbf{#1}}}
   }