diff --git a/build/windows/gitlab-ci/package-gimp-msys2.sh b/build/windows/gitlab-ci/package-gimp-msys2.sh
index 92357c505b..1fa2b57f50 100644
--- a/build/windows/gitlab-ci/package-gimp-msys2.sh
+++ b/build/windows/gitlab-ci/package-gimp-msys2.sh
@@ -101,7 +101,7 @@ cp -fr ${GIMP_PREFIX}/lib/gio ${GIMP_DISTRIB}/lib/
 cp -fr ${MSYS_PREFIX}/lib/gdk-pixbuf-2.0 ${GIMP_DISTRIB}/lib/
 cp -fr ${GIMP_PREFIX}/lib/gtk-3.0 ${GIMP_DISTRIB}/lib/
 
-cp -fr ${MSYS_PREFIX}/lib/python3.8 ${GIMP_DISTRIB}/lib/
+cp -fr ${MSYS_PREFIX}/lib/python3.9 ${GIMP_DISTRIB}/lib/
 
 cp -fr ${MSYS_PREFIX}/share/ghostscript ${GIMP_DISTRIB}/share/
 cp -fr ${GIMP_PREFIX}/share/glib-2.0 ${GIMP_DISTRIB}/share/
@@ -230,7 +230,7 @@ cp -fr ${MSYS_PREFIX}/bin/libgirepository-1.0-1.dll ${GIMP_DISTRIB}/bin/
 python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/libgirepository-1.0-1.dll ${GIMP_PREFIX}/ ${GIMP_DISTRIB}
 python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/libgirepository-1.0-1.dll ${MSYS_PREFIX}/ ${GIMP_DISTRIB}
 
-for dll in ${GIMP_DISTRIB}/lib/python3.8/site-packages/*/*.dll; do
+for dll in ${GIMP_DISTRIB}/lib/python3.9/site-packages/*/*.dll; do
   python3 build/windows/gitlab-ci/dll_link.py $dll ${GIMP_PREFIX}/ ${GIMP_DISTRIB};
   python3 build/windows/gitlab-ci/dll_link.py $dll ${MSYS_PREFIX}/ ${GIMP_DISTRIB};
 done
diff --git a/build/windows/installer/files.isi b/build/windows/installer/files.isi
index ea2633718d..bec807f018 100644
--- a/build/windows/installer/files.isi
+++ b/build/windows/installer/files.isi
@@ -48,8 +48,8 @@ Source: "{#DEPS_DIR}\{#DDIR}\lib\gio\*.dll"; DestDir: "{app}\lib\gio"; Component
 #ifdef PYTHON
 Source: "{#DEPS_DIR}\{#DDIR}\bin\python3w.exe"; DestDir: "{app}\bin"; DestName: "pythonw.exe"; Components: py and gimp{#PLATFORM}; Flags: restartreplace uninsrestartdelete ignoreversion
 Source: "{#DEPS_DIR}\{#DDIR}\bin\python3.exe"; DestDir: "{app}\bin"; DestName: "python.exe"; Components: py and gimp{#PLATFORM}; Flags: restartreplace uninsrestartdelete ignoreversion
-Source: "{#DEPS_DIR}\{#DDIR}\bin\libpython3.8.dll"; DestDir: "{app}\bin"; Components: py and gimp{#PLATFORM}; Flags: restartreplace uninsrestartdelete ignoreversion
-Source: "{#DEPS_DIR}\{#DDIR}\lib\python3.8\*"; DestDir: "{app}\lib\python3.8"; Components: py and gimp{#PLATFORM}; Flags: recursesubdirs restartreplace uninsrestartdelete ignoreversion
+Source: "{#DEPS_DIR}\{#DDIR}\bin\libpython3.9.dll"; DestDir: "{app}\bin"; Components: py and gimp{#PLATFORM}; Flags: restartreplace uninsrestartdelete ignoreversion
+Source: "{#DEPS_DIR}\{#DDIR}\lib\python3.9\*"; DestDir: "{app}\lib\python3.9"; Components: py and gimp{#PLATFORM}; Flags: recursesubdirs restartreplace uninsrestartdelete ignoreversion
 #endif
 
 #ifdef LUA