diff --git a/extra/cantor/PKGBUILD b/extra/cantor/PKGBUILD
index 378b0ba6e..0c5da0e11 100644
--- a/extra/cantor/PKGBUILD
+++ b/extra/cantor/PKGBUILD
@@ -7,7 +7,7 @@
 
 pkgname=cantor
 pkgver=21.08.3
-pkgrel=1
+pkgrel=2
 pkgdesc='KDE Frontend to Mathematical Software'
 url='https://apps.kde.org/cantor/'
 arch=(x86_64)
diff --git a/extra/cantor/cantor-julia-1.6.patch b/extra/cantor/cantor-julia-1.6.patch
deleted file mode 100644
index e02721268..000000000
--- a/extra/cantor/cantor-julia-1.6.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-diff --git a/cmake/FindJulia.cmake b/cmake/FindJulia.cmake
-index c7f64746..aba71a2d 100644
---- a/cmake/FindJulia.cmake
-+++ b/cmake/FindJulia.cmake
-@@ -80,16 +80,46 @@ if(RESULT EQUAL 0)
-         CACHE PATH "Julia library directory")
- endif()
- 
-+if(NOT ${JULIA_VERSION_STRING} VERSION_LESS 1.6.0)
-+    set(JULIA_INTERNAL_LIBDL_COMMAND "using Libdl\; abspath(dirname(Libdl.dlpath(\"libjulia-internal\")))")
-+    execute_process(
-+        COMMAND ${JULIA_EXECUTABLE} -E ${JULIA_INTERNAL_LIBDL_COMMAND}
-+        OUTPUT_VARIABLE JULIA_INTERNAL_LIBRARY_DIR
-+        RESULT_VARIABLE RESULT
-+    )
-+
-+    if(RESULT EQUAL 0)
-+        string(REGEX REPLACE "\"" "" JULIA_INTERNAL_LIBRARY_DIR ${JULIA_INTERNAL_LIBRARY_DIR})
-+        string(STRIP ${JULIA_INTERNAL_LIBRARY_DIR} JULIA_INTERNAL_LIBRARY_DIR)
-+        set(JULIA_INTERNAL_LIBRARY_DIR ${JULIA_INTERNAL_LIBRARY_DIR}
-+            CACHE PATH "Julia internal library directory")
-+    endif()
-+endif()
-+
- find_library( JULIA_LIBRARY
-     NAMES julia
-     PATHS ${JULIA_LIBRARY_DIR}
- )
- 
-+if(NOT ${JULIA_VERSION_STRING} VERSION_LESS 1.6.0)
-+    find_library( JULIA_INTERNAL_LIBRARY
-+        NAMES julia-internal
-+        PATHS ${JULIA_INTERNAL_LIBRARY_DIR}
-+    )
-+endif()
- 
--include(FindPackageHandleStandardArgs)
--find_package_handle_standard_args(
--    Julia
--    REQUIRED_VARS   JULIA_LIBRARY JULIA_LIBRARY_DIR JULIA_INCLUDE_DIRS
--    VERSION_VAR     JULIA_VERSION_STRING
--    FAIL_MESSAGE    "Julia not found"
--)
-+if(${JULIA_VERSION_STRING} VERSION_LESS 1.6.0)
-+    find_package_handle_standard_args(
-+        Julia
-+        REQUIRED_VARS   JULIA_LIBRARY JULIA_INCLUDE_DIRS
-+        VERSION_VAR     JULIA_VERSION_STRING
-+        FAIL_MESSAGE    "Julia not found"
-+    )
-+else()
-+    find_package_handle_standard_args(
-+        Julia
-+        REQUIRED_VARS   JULIA_LIBRARY JULIA_INTERNAL_LIBRARY JULIA_INCLUDE_DIRS
-+        VERSION_VAR     JULIA_VERSION_STRING
-+        FAIL_MESSAGE    "Julia not found"
-+    )
-+endif()
-diff --git a/src/backends/julia/juliaserver/CMakeLists.txt b/src/backends/julia/juliaserver/CMakeLists.txt
-index 7301eca0..f12628e1 100644
---- a/src/backends/julia/juliaserver/CMakeLists.txt
-+++ b/src/backends/julia/juliaserver/CMakeLists.txt
-@@ -8,6 +8,7 @@ add_executable(cantor_juliaserver ${JuliaServer_SRCS})
- 
- target_link_libraries(cantor_juliaserver
-     ${JULIA_LIBRARY}
-+    ${JULIA_INTERNAL_LIBRARY}
-     Qt5::Widgets
-     Qt5::DBus
- )
diff --git a/extra/cantor/cantor-julia-1.7.patch b/extra/cantor/cantor-julia-1.7.patch
new file mode 100644
index 000000000..554e5a260
--- /dev/null
+++ b/extra/cantor/cantor-julia-1.7.patch
@@ -0,0 +1,15 @@
+diff --git a/src/backends/julia/juliaserver/juliaserver.cpp b/src/backends/julia/juliaserver/juliaserver.cpp
+index c68fd46f..e2995cb7 100644
+--- a/src/backends/julia/juliaserver/juliaserver.cpp
++++ b/src/backends/julia/juliaserver/juliaserver.cpp
+@@ -91,7 +91,9 @@ void JuliaServer::runJuliaCommand(const QString &command)
+ 
+     if (jl_exception_occurred()) { // If exception occurred
+         // Show it to user in stderr
+-#if QT_VERSION_CHECK(JULIA_VERSION_MAJOR, JULIA_VERSION_MINOR, 0) >= QT_VERSION_CHECK(1, 1, 0)
++#if QT_VERSION_CHECK(JULIA_VERSION_MAJOR, JULIA_VERSION_MINOR, 0) >= QT_VERSION_CHECK(1, 7, 0)
++        jl_value_t *ex = jl_current_task->ptls->previous_exception;
++#elif QT_VERSION_CHECK(JULIA_VERSION_MAJOR, JULIA_VERSION_MINOR, 0) >= QT_VERSION_CHECK(1, 1, 0)
+         jl_value_t *ex = jl_get_ptls_states()->previous_exception;
+ #else
+         jl_value_t *ex = jl_exception_in_transit;