diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ddf2c5..553f93a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- 修正英文摘要标题“ABSTRACT”的粗体([#411](https://github.com/ustctug/ustcthesis/issues/411#issuecomment-2577181494))。
+
 ## [4.0.0-beta.4] - 2025-01-05
 
 ### Added
diff --git a/test/testfiles-crossref/main-english.tlg b/test/testfiles-crossref/main-english.tlg
index 69d07f1..8fd2c3e 100644
--- a/test/testfiles-crossref/main-english.tlg
+++ b/test/testfiles-crossref/main-english.tlg
@@ -250,7 +250,7 @@ Completed box being shipped out [2]
 ....\special{color pop}
 ..\glue 8.2511
 ..\glue(\lineskip) 0.0
-..\vbox(700.50723+0.0)x417.11752, glue set 598.82768fil
+..\vbox(700.50723+0.0)x417.11752, glue set 598.49045fil
 ...\write-{}
 ...\marks1{\__mark_id:n {3}ABSTRACT}
 ...\marks2{\__mark_id:n {4}}
@@ -263,9 +263,9 @@ Completed box being shipped out [2]
 ...\glue 0.0
 ...\glue(\parskip) 0.0
 ...\glue(\parskip) 0.0
-...\hbox(10.85655+0.22482)x417.11752, glue set 167.22034fil
+...\hbox(11.11353+0.30513)x417.11752, glue set 165.55812fil
 ....\glue(\leftskip) 0.0 plus 1.0fil
-....\TU/texgyretermes(0)/m/n/16.06 ABSTRACT
+....\TU/texgyretermes(0)/b/n/16.06 ABSTRACT
 ....\kern -0.0002
 ....\kern 0.0002
 ....\penalty 10000
diff --git a/test/testfiles-crossref/main.tlg b/test/testfiles-crossref/main.tlg
index d1ec891..6e71c13 100644
--- a/test/testfiles-crossref/main.tlg
+++ b/test/testfiles-crossref/main.tlg
@@ -250,7 +250,7 @@ Completed box being shipped out [2]
 ....\special{color pop}
 ..\glue 8.2511
 ..\glue(\lineskip) 0.0
-..\vbox(700.50723+0.0)x417.11752, glue set 598.82768fil
+..\vbox(700.50723+0.0)x417.11752, glue set 598.49045fil
 ...\write-{}
 ...\marks1{\__mark_id:n {3}ABSTRACT}
 ...\marks2{\__mark_id:n {4}}
@@ -263,9 +263,9 @@ Completed box being shipped out [2]
 ...\glue 0.0
 ...\glue(\parskip) 0.0
 ...\glue(\parskip) 0.0
-...\hbox(10.85655+0.22482)x417.11752, glue set 167.22034fil
+...\hbox(11.11353+0.30513)x417.11752, glue set 165.55812fil
 ....\glue(\leftskip) 0.0 plus 1.0fil
-....\TU/texgyretermes(0)/m/n/16.06 ABSTRACT
+....\TU/texgyretermes(0)/b/n/16.06 ABSTRACT
 ....\kern -0.0002
 ....\kern 0.0002
 ....\penalty 10000
diff --git a/ustcthesis.cls b/ustcthesis.cls
index 6e2383e..f2985e4 100644
--- a/ustcthesis.cls
+++ b/ustcthesis.cls
@@ -2419,6 +2419,9 @@
 \newenvironment{abstract*}{%
   \ustcsetup{language=english}%
   \ifustc@degree@graduate
+    \ctexset{
+      chapter/format = \centering\bfseries\fontsize{16bp}{26.67bp}\selectfont,
+    }%
     \ustc@chapter{ABSTRACT}%
   \else
     \begingroup