diff --git a/resources/3rdparty/include_cudd.cmake b/resources/3rdparty/include_cudd.cmake
index 9aafb98b4..1f02462b2 100644
--- a/resources/3rdparty/include_cudd.cmake
+++ b/resources/3rdparty/include_cudd.cmake
@@ -28,7 +28,7 @@ if (NOT STORM_PORTABLE)
 	set(STORM_CUDD_FLAGS "${STORM_CUDD_FLAGS} -march=native")
 endif()
 
-# Set sysroot to circumvent problems in macOS "Mojave" where the header files are no longer in /usr/include
+# Set sysroot to circumvent problems in macOS "Mojave" (or higher) where the header files are no longer in /usr/include
 set(CUDD_INCLUDE_FLAGS "")
 if (CMAKE_OSX_SYSROOT)
     set(CUDD_INCLUDE_FLAGS "CPPFLAGS=--sysroot=${CMAKE_OSX_SYSROOT}")
diff --git a/resources/3rdparty/include_glpk.cmake b/resources/3rdparty/include_glpk.cmake
index e7dc55149..87c3ebcfa 100644
--- a/resources/3rdparty/include_glpk.cmake
+++ b/resources/3rdparty/include_glpk.cmake
@@ -3,13 +3,20 @@ if(GLPK_FOUND)
     message (STATUS "Storm - Using system version of glpk.")
 else()
     message (STATUS "Storm - Using shipped version of glpk.")
-    set(GLPK_LIB_DIR ${STORM_3RDPARTY_BINARY_DIR}/glpk-4.57/lib)
+    set(GLPK_LIB_DIR ${STORM_3RDPARTY_BINARY_DIR}/glpk-4.65/lib)
+	
+	# Set sysroot to circumvent problems in macOS "Mojave" (or higher) where the header files are no longer in /usr/include
+	set(GLPK_INCLUDE_FLAGS "")
+	if (CMAKE_OSX_SYSROOT)
+	    set(GLPK_INCLUDE_FLAGS "CPPFLAGS=--sysroot=${CMAKE_OSX_SYSROOT}")
+	endif()
+	
     ExternalProject_Add(glpk_ext
         DOWNLOAD_COMMAND ""
-        PREFIX ${STORM_3RDPARTY_BINARY_DIR}/glpk-4.57
-        SOURCE_DIR ${STORM_3RDPARTY_SOURCE_DIR}/glpk-4.57
-        CONFIGURE_COMMAND ${STORM_3RDPARTY_SOURCE_DIR}/glpk-4.57/configure --prefix=${STORM_3RDPARTY_BINARY_DIR}/glpk-4.57  --libdir=${GLPK_LIB_DIR} CC=${CMAKE_C_COMPILER} CXX=${CMAKE_CXX_COMPILER}
-        BUILD_COMMAND make "CFLAGS=-O2 -w"
+        PREFIX ${STORM_3RDPARTY_BINARY_DIR}/glpk-4.65
+        SOURCE_DIR ${STORM_3RDPARTY_SOURCE_DIR}/glpk-4.65
+        CONFIGURE_COMMAND ${STORM_3RDPARTY_SOURCE_DIR}/glpk-4.65/configure --prefix=${STORM_3RDPARTY_BINARY_DIR}/glpk-4.65  --libdir=${GLPK_LIB_DIR} CC=${CMAKE_C_COMPILER} CXX=${CMAKE_CXX_COMPILER} ${GLPK_INCLUDE_FLAGS}
+        BUILD_COMMAND make "CFLAGS=-O3 -w"
         INSTALL_COMMAND make install
         BUILD_IN_SOURCE 0
         LOG_CONFIGURE ON
@@ -18,8 +25,8 @@ else()
         BUILD_BYPRODUCTS ${GLPK_LIB_DIR}/libglpk${DYNAMIC_EXT} ${GLPK_LIB_DIR}/libglpk${STATIC_EXT}
     )
     set(GLPK_LIBRARIES  ${GLPK_LIB_DIR}/libglpk${DYNAMIC_EXT})
-    set(GLPK_INCLUDE_DIR ${STORM_3RDPARTY_BINARY_DIR}/glpk-4.57/include)
-    set(GLPK_VERSION_STRING 4.57)
+    set(GLPK_INCLUDE_DIR ${STORM_3RDPARTY_BINARY_DIR}/glpk-4.65/include)
+    set(GLPK_VERSION_STRING 4.65)
     add_dependencies(resources glpk_ext)
 endif()