diff --git a/src/backends/sage/CMakeLists.txt b/src/backends/sage/CMakeLists.txt
--- a/src/backends/sage/CMakeLists.txt
+++ b/src/backends/sage/CMakeLists.txt
@@ -29,3 +29,9 @@
 endif()
 
 install(FILES cantor_sage.knsrc  DESTINATION  ${KDE_INSTALL_CONFDIR})
+
+install(
+  FILES cantor-execsage
+  PERMISSIONS WORLD_READ OWNER_WRITE WORLD_EXECUTE
+  DESTINATION ${KDE_INSTALL_DATADIR}/cantor/sagebackend
+)
diff --git a/src/backends/sage/cantor-execsage b/src/backends/sage/cantor-execsage
new file mode 100644
--- /dev/null
+++ b/src/backends/sage/cantor-execsage
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+ROOT="$($1 --root)"
+
+if [[ -f $ROOT"/bin/sage-env" ]]; then
+    . "$ROOT/bin/sage-env" >&2
+elif [[ -f $ROOT"/src/bin/sage-env" ]]; then
+    . "$ROOT/src/bin/sage-env" >&2
+else
+    exit 1 # We have a problem
+fi
+
+exec sage-ipython -i --simple-prompt
\ No newline at end of file
diff --git a/src/backends/sage/sagebackend.cpp b/src/backends/sage/sagebackend.cpp
--- a/src/backends/sage/sagebackend.cpp
+++ b/src/backends/sage/sagebackend.cpp
@@ -58,7 +58,7 @@
 
 QString SageBackend::version() const
 {
-    return QLatin1String("Undefined");
+    return QLatin1String("8.1 and 8.2");
 }
 
 Cantor::Session* SageBackend::createSession()
diff --git a/src/backends/sage/sagesession.cpp b/src/backends/sage/sagesession.cpp
--- a/src/backends/sage/sagesession.cpp
+++ b/src/backends/sage/sagesession.cpp
@@ -116,7 +116,11 @@
     emit loginStarted();
 
     m_process=new KPtyProcess(this);
-    m_process->setProgram(SageSettings::self()->path().toLocalFile());
+
+    const QString& sageExecFile = SageSettings::self()->path().toLocalFile();
+    const QString& sageStartScript = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("cantor/sagebackend/cantor-execsage"));
+    m_process->setProgram(sageStartScript, QStringList(sageExecFile));
+
     m_process->setOutputChannelMode(KProcess::SeparateChannels);
     m_process->setPtyChannels(KPtyProcess::AllChannels);
     m_process->pty()->setEcho(false);
@@ -213,7 +217,18 @@
 
             m_sageVersion=SageSession::VersionInfo(major, minor);
 
-            if(m_sageVersion<=SageSession::VersionInfo(5, 7))
+            // We can't work with this versions, because https://github.com/ipython/ipython/issues/9816
+            // Upper bound (8.0) was tested, but lower bound (7.4) was not (but Sage 7.6 already don't work for Cantor)
+            if(m_sageVersion <= SageSession::VersionInfo(8, 0) && m_sageVersion >= SageSession::VersionInfo(7,4))
+            {
+                const QString message = i18n(
+                    "Sorry, but Cantor can't work with Sage %1.%2, because this Sage version have"\
+                    " a bug, which can't allow Cantor work correctly", major, minor);
+                KMessageBox::error(nullptr, message, i18n("Cantor"));
+                interrupt();
+                logout();
+            }
+            else if(m_sageVersion<=SageSession::VersionInfo(5, 7))
             {
                 qDebug()<<"using an old version of sage: "<<major<<"."<<minor<<". Using the old init command";
                 if(!m_haveSentInitCmd)