diff --git a/python/py-matplotlib/Portfile b/python/py-matplotlib/Portfile
index f643bff2209b8..84917079d68a0 100644
--- a/python/py-matplotlib/Portfile
+++ b/python/py-matplotlib/Portfile
@@ -5,7 +5,7 @@ PortGroup           python 1.0
 
 name                py-matplotlib
 version             3.3.0
-revision            0
+revision            1
 
 categories-append   graphics math
 platforms           darwin
@@ -53,7 +53,7 @@ if {${name} ne ${subport}} {
 
     if {${python.version} eq 27} {
         version     2.2.5
-        revision    1
+        revision    2
         checksums   rmd160  4532a205e8f40d6f40346b2e461d3dca144b38b9 \
                     sha256  a3037a840cd9dfdc2df9fee8af8f76ca82bfab173c0f9468193ca7a89a2b60ea \
                     size    36678633
@@ -65,19 +65,17 @@ if {${name} ne ${subport}} {
                     port:py${python.version}-tz
 
         patchfiles  patch-v2-setup.cfg.diff \
-                    patch-v2-src-macosx.m.diff \
                     patch-v2-qhull.diff \
                     patch-v2-setupext.py.diff \
                     patch-v2-jquery-ui.diff
     } elseif {${python.version} eq 35} {
         version     3.0.3
-        revision    2
+        revision    3
         checksums   rmd160  98ecd1ca25d555bde5d43fcaef800f7436d7d738 \
                     sha256  e1d33589e32f482d0a7d1957bf473d43341115d40d33f578dad44432e47df7b7 \
                     size    36640137
 
         patchfiles  patch-v30-setup.cfg.diff \
-                    patch-v30-src-macosx.m.diff \
                     patch-v30-qhull.diff \
                     patch-v30-setupext.py.diff \
                     patch-v30-jquery-ui.diff
diff --git a/python/py-matplotlib/files/patch-v2-src-macosx.m.diff b/python/py-matplotlib/files/patch-v2-src-macosx.m.diff
deleted file mode 100644
index b7a83a5746877..0000000000000
--- a/python/py-matplotlib/files/patch-v2-src-macosx.m.diff
+++ /dev/null
@@ -1,11 +0,0 @@
---- src/_macosx.m.orig	2018-08-09 23:01:31.000000000 -0400
-+++ src/_macosx.m	2018-10-04 10:20:58.000000000 -0400
-@@ -1,5 +1,8 @@
- #include <Cocoa/Cocoa.h>
- #include <ApplicationServices/ApplicationServices.h>
-+#ifndef kCTForegroundColorFromContextAttributeName
-+extern const CFStringRef kCTForegroundColorFromContextAttributeName AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
-+#endif
- #include <sys/socket.h>
- #include <Python.h>
- 
diff --git a/python/py-matplotlib/files/patch-v30-src-macosx.m.diff b/python/py-matplotlib/files/patch-v30-src-macosx.m.diff
deleted file mode 100644
index b7a83a5746877..0000000000000
--- a/python/py-matplotlib/files/patch-v30-src-macosx.m.diff
+++ /dev/null
@@ -1,11 +0,0 @@
---- src/_macosx.m.orig	2018-08-09 23:01:31.000000000 -0400
-+++ src/_macosx.m	2018-10-04 10:20:58.000000000 -0400
-@@ -1,5 +1,8 @@
- #include <Cocoa/Cocoa.h>
- #include <ApplicationServices/ApplicationServices.h>
-+#ifndef kCTForegroundColorFromContextAttributeName
-+extern const CFStringRef kCTForegroundColorFromContextAttributeName AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
-+#endif
- #include <sys/socket.h>
- #include <Python.h>
- 
diff --git a/python/py-matplotlib/files/patch-v33-src-macosx.m.diff b/python/py-matplotlib/files/patch-v33-src-macosx.m.diff
index 102a7ed69d476..bb00fb8ab0bd3 100644
--- a/python/py-matplotlib/files/patch-v33-src-macosx.m.diff
+++ b/python/py-matplotlib/files/patch-v33-src-macosx.m.diff
@@ -1,12 +1,23 @@
---- src/_macosx.m.orig	2019-05-18 14:01:10.000000000 -0400
-+++ src/_macosx.m	2019-05-21 09:49:01.000000000 -0400
-@@ -1,6 +1,9 @@
- #define PY_SSIZE_T_CLEAN
- #include <Cocoa/Cocoa.h>
- #include <ApplicationServices/ApplicationServices.h>
-+#ifndef kCTForegroundColorFromContextAttributeName
-+extern const CFStringRef kCTForegroundColorFromContextAttributeName AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
-+#endif
- #include <sys/socket.h>
- #include <Python.h>
- 
+In version 3.3.0 upstream started making use of features introduced
+in macOS 10.11, which caused failures when building the MacOSX
+backend on earlier macOS versions..
+
+see: https://github.com/matplotlib/matplotlib/pull/17956
+
+--- src/_macosx.m.orig	2020-07-18 17:50:09.000000000 -0400
++++ src/_macosx.m	2020-07-18 19:44:06.000000000 -0400
+@@ -1207,8 +1207,12 @@
+     rect.size.height = 0;
+     rect.origin.x += height;
+     NSTextView* messagebox = [[NSTextView alloc] initWithFrame: rect];
+-    messagebox.textContainer.maximumNumberOfLines = 2;
+-    messagebox.textContainer.lineBreakMode = NSLineBreakByTruncatingTail;
++
++    if (@available(macOS 10.11, *)) {
++        messagebox.textContainer.maximumNumberOfLines = 2;
++        messagebox.textContainer.lineBreakMode = NSLineBreakByTruncatingTail;
++    }
++
+     [messagebox setFont: font];
+     [messagebox setDrawsBackground: NO];
+     [messagebox setSelectable: NO];