diff --git a/NEWS.md b/NEWS.md
index afdc84db..97a5fa10 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,7 @@
+Red Panda C++ Version 3.1
+
+  - fix: Can't correctly select in column mode.
+
 Red Panda C++ Version 3.0
 
   - enhancement: New chinese translation for invalid filename messagebox. (by XY0797@github.com)
diff --git a/libs/qsynedit/qsynedit/qsynedit.cpp b/libs/qsynedit/qsynedit/qsynedit.cpp
index fec184af..fbec9aa5 100644
--- a/libs/qsynedit/qsynedit/qsynedit.cpp
+++ b/libs/qsynedit/qsynedit/qsynedit.cpp
@@ -6636,7 +6636,7 @@ void QSynEdit::setBlockEnd(BufferCoord value)
       else
           value.ch = 1;
     } else {
-        value.ch = std::min(value.ch, 1);
+        value.ch = std::max(value.ch, 1);
     }
     if (value.ch != mBlockEnd.ch || value.line != mBlockEnd.line) {
         if (mActiveSelectionMode == SelectionMode::Column && value.ch != mBlockEnd.ch) {
diff --git a/version.inc b/version.inc
index 073f9b05..0722923d 100644
--- a/version.inc
+++ b/version.inc
@@ -1,2 +1,2 @@
-APP_VERSION="3.0"
-APP_VERSION_SUFFIX=""
+APP_VERSION="3.1"
+APP_VERSION_SUFFIX="alpha"