diff --git a/src/app/stacktracedialog.h b/src/app/stacktracedialog.h
index ff9b0c81e..96292093f 100644
--- a/src/app/stacktracedialog.h
+++ b/src/app/stacktracedialog.h
@@ -72,15 +72,17 @@ public:
             "Qt version: " QT_VERSION_STR "<br/>"
             "Boost version: %3<br/>"
             "OpenSSL version: %4<br/>"
-            "OS version: %5<br/><br/>"
-            "Caught signal: %6"
+            "zlib version: %5<br/>"
+            "OS version: %6<br/><br/>"
+            "Caught signal: %7"
             "</font></p>"
-            "<pre><code>%7</code></pre>"
+            "<pre><code>%8</code></pre>"
             "<br/><hr><br/><br/>")
                 .arg(QString::number(QT_POINTER_SIZE * 8)
                      , Utils::Misc::libtorrentVersionString()
                      , Utils::Misc::boostVersionString()
                      , Utils::Misc::opensslVersionString()
+                     , Utils::Misc::zlibVersionString()
                      , Utils::Misc::osName()
                      , sigName
                      , trace);
diff --git a/src/base/utils/misc.cpp b/src/base/utils/misc.cpp
index 6514abf8f..3941bc28e 100644
--- a/src/base/utils/misc.cpp
+++ b/src/base/utils/misc.cpp
@@ -44,6 +44,7 @@
 #include <boost/version.hpp>
 #include <openssl/opensslv.h>
 #include <libtorrent/version.hpp>
+#include <zlib.h>
 
 #include <QCoreApplication>
 #include <QRegularExpression>
@@ -463,6 +464,13 @@ QString Utils::Misc::opensslVersionString()
     return version.split(' ', QString::SkipEmptyParts)[1];
 }
 
+QString Utils::Misc::zlibVersionString()
+{
+    // static initialization for usage in signal handler
+    static const QString version {ZLIB_VERSION};
+    return version;
+}
+
 #ifdef Q_OS_WIN
 QString Utils::Misc::windowsSystemPath()
 {
diff --git a/src/base/utils/misc.h b/src/base/utils/misc.h
index 539df3048..c83918ed0 100644
--- a/src/base/utils/misc.h
+++ b/src/base/utils/misc.h
@@ -70,6 +70,7 @@ namespace Utils
         QString boostVersionString();
         QString libtorrentVersionString();
         QString opensslVersionString();
+        QString zlibVersionString();
 
         QString unitString(SizeUnit unit, bool isSpeed = false);
 
diff --git a/src/gui/aboutdialog.h b/src/gui/aboutdialog.h
index 7ab927f2f..a41bc9a02 100644
--- a/src/gui/aboutdialog.h
+++ b/src/gui/aboutdialog.h
@@ -99,6 +99,7 @@ public:
         m_ui->labelLibtVer->setText(Utils::Misc::libtorrentVersionString());
         m_ui->labelBoostVer->setText(Utils::Misc::boostVersionString());
         m_ui->labelOpensslVer->setText(Utils::Misc::opensslVersionString());
+        m_ui->labelZlibVer->setText(Utils::Misc::zlibVersionString());
 
         Utils::Gui::resize(this);
         show();
diff --git a/src/gui/aboutdialog.ui b/src/gui/aboutdialog.ui
index 2fb89da29..f0ed552d6 100644
--- a/src/gui/aboutdialog.ui
+++ b/src/gui/aboutdialog.ui
@@ -441,6 +441,26 @@
            </property>
           </widget>
          </item>
+         <item row="4" column="1">
+          <widget class="QLabel" name="label_12">
+           <property name="text">
+            <string notr="true">zlib:</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+           <property name="textInteractionFlags">
+            <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
+           </property>
+          </widget>
+         </item>
+         <item row="4" column="2">
+          <widget class="QLabel" name="labelZlibVer">
+           <property name="textInteractionFlags">
+            <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
+           </property>
+          </widget>
+         </item>
         </layout>
        </item>
        <item>
diff --git a/src/webui/api/appcontroller.cpp b/src/webui/api/appcontroller.cpp
index 0cf80dc00..bbaf36c6b 100644
--- a/src/webui/api/appcontroller.cpp
+++ b/src/webui/api/appcontroller.cpp
@@ -71,6 +71,7 @@ void AppController::buildInfoAction()
         {"libtorrent", Utils::Misc::libtorrentVersionString()},
         {"boost", Utils::Misc::boostVersionString()},
         {"openssl", Utils::Misc::opensslVersionString()},
+        {"zlib", Utils::Misc::zlibVersionString()},
         {"bitness", (QT_POINTER_SIZE * 8)}
     };
     setResult(versions);
diff --git a/src/webui/www/private/about.html b/src/webui/www/private/about.html
index e2f783c12..b540b9146 100644
--- a/src/webui/www/private/about.html
+++ b/src/webui/www/private/about.html
@@ -671,6 +671,10 @@
             <td>OpenSSL:</td>
             <td><span id="opensslVersion"></span></td>
         </tr>
+        <tr>
+            <td>zlib:</td>
+            <td><span id="zlibVersion"></span></td>
+        </tr>
     </table>
 </div>
 
@@ -691,6 +695,7 @@
             $('libtorrentVersion').textContent = info.libtorrent;
             $('boostVersion').textContent = info.boost;
             $('opensslVersion').textContent = info.openssl;
+            $('zlibVersion').textContent = info.zlib;
             $('qbittorrentVersion').textContent += " (" + info.bitness + "-bit)";
         }
     }).send();