diff --git a/src/HsH-article.cls b/src/HsH-article.cls
index 0a116c65445e29753b358bc2be9358b7b54409d1..5cc8ff416955666157946208a82cdb230d0c7368 100644
--- a/src/HsH-article.cls
+++ b/src/HsH-article.cls
@@ -17,7 +17,7 @@
 %% 
 \NeedsTeXFormat{LaTeX2e}[2022-06-01]
 \ProvidesClass{HsH-article}
-    [2024-04-23 3.00 HsH-class based on KOMA]
+    [2024-04-25 3.01 HsH-class based on KOMA]
 \let\HsHClassName\@currname
 \def\HsHClassName@ParrentClass{%
   scrartcl%
@@ -220,7 +220,7 @@
 \RequirePackage{scrhack}
 \AtBeginDocument{
   \makeatletter
-  \@ifpackageloaded{biblatex}{
+  \@ifpackageloaded{listings}{
     \RequirePackage{lstautogobble}\lstset{autogobble=true}
     \iflanguage{ngerman}{
       \lstset{literate={Ö}{{\"O}}1{Ä}{{\"A}}1{Ü}{{\"U}}1{ß}{{\ss}}1{ü}{{\"u}}1{ä}{{\"a}}1{ö}{{\"o}}1}
diff --git a/src/HsH-classes.dtx b/src/HsH-classes.dtx
index 3d75e7d51c257086d06ebe96f9dcd41f02e5d6e8..dac0aa7f20ae48fcb806d2f00f2eda93d44e018e 100644
--- a/src/HsH-classes.dtx
+++ b/src/HsH-classes.dtx
@@ -74,7 +74,7 @@ http://www.latex-project.org/lppl.txt
 %<report>\ProvidesClass{HsH-report}
 %<standalone>\ProvidesClass{HsH-standalone}
 %<*article|report|standalone>
-    [2024-04-23 3.00 HsH-class based on KOMA]
+    [2024-04-25 3.01 HsH-class based on KOMA]
 %</article|report|standalone>
 %<*driver> ^^A ---------- documentation driver -----------------------------------------
   \documentclass{ltxdoc}
@@ -954,7 +954,7 @@ http://www.latex-project.org/lppl.txt
 \RequirePackage{scrhack}
 \AtBeginDocument{
   \makeatletter
-  \@ifpackageloaded{biblatex}{
+  \@ifpackageloaded{listings}{
     \RequirePackage{lstautogobble}\lstset{autogobble=true}
     \iflanguage{ngerman}{
       \lstset{literate={Ö}{{\"O}}1{Ä}{{\"A}}1{Ü}{{\"U}}1{ß}{{\ss}}1{ü}{{\"u}}1{ä}{{\"a}}1{ö}{{\"o}}1}
diff --git a/src/HsH-classes.pdf b/src/HsH-classes.pdf
index 097ba80ae0f8d90714477e411faab79092894d2a..75ded2196757f003af530305ce098d5d73fe5e6d 100644
--- a/src/HsH-classes.pdf
+++ b/src/HsH-classes.pdf
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c72148ea9a3177947c89717138ca652b724a131fa8e85c64434d7131f93ec1ab
-size 313109
+oid sha256:10678dab154a21f3860fa8bd17a665feea659bd433c86b1aac3e19aff2ed34d5
+size 313112
diff --git a/src/HsH-report.cls b/src/HsH-report.cls
index 6e23c381a2a1c75032cfacc24ad327fa3011660d..d2fbeded0b30158a7f352e19896835a817577cf2 100644
--- a/src/HsH-report.cls
+++ b/src/HsH-report.cls
@@ -17,7 +17,7 @@
 %% 
 \NeedsTeXFormat{LaTeX2e}[2022-06-01]
 \ProvidesClass{HsH-report}
-    [2024-04-23 3.00 HsH-class based on KOMA]
+    [2024-04-25 3.01 HsH-class based on KOMA]
 \let\HsHClassName\@currname
 \def\HsHClassName@ParrentClass{%
   scrreprt%
@@ -220,7 +220,7 @@
 \RequirePackage{scrhack}
 \AtBeginDocument{
   \makeatletter
-  \@ifpackageloaded{biblatex}{
+  \@ifpackageloaded{listings}{
     \RequirePackage{lstautogobble}\lstset{autogobble=true}
     \iflanguage{ngerman}{
       \lstset{literate={Ö}{{\"O}}1{Ä}{{\"A}}1{Ü}{{\"U}}1{ß}{{\ss}}1{ü}{{\"u}}1{ä}{{\"a}}1{ö}{{\"o}}1}
diff --git a/src/HsH-standalone.cls b/src/HsH-standalone.cls
index 6c9fa2f5c743ce7eeb9aebe8c6d449ef1fdcde06..010528b228b3169c8d88e9d313e22216b4bf3472 100644
--- a/src/HsH-standalone.cls
+++ b/src/HsH-standalone.cls
@@ -17,7 +17,7 @@
 %% 
 \NeedsTeXFormat{LaTeX2e}[2022-06-01]
 \ProvidesClass{HsH-standalone}
-    [2024-04-23 3.00 HsH-class based on KOMA]
+    [2024-04-25 3.01 HsH-class based on KOMA]
 \let\HsHClassName\@currname
 \def\HsHClassName@ParrentClass{%
   standalone%
@@ -135,7 +135,7 @@
 \RequirePackage{scrhack}
 \AtBeginDocument{
   \makeatletter
-  \@ifpackageloaded{biblatex}{
+  \@ifpackageloaded{listings}{
     \RequirePackage{lstautogobble}\lstset{autogobble=true}
     \iflanguage{ngerman}{
       \lstset{literate={Ö}{{\"O}}1{Ä}{{\"A}}1{Ü}{{\"U}}1{ß}{{\ss}}1{ü}{{\"u}}1{ä}{{\"a}}1{ö}{{\"o}}1}