diff --git a/testing/micropython/APKBUILD b/testing/micropython/APKBUILD
index 7ffc3ab0882..b687f0e2669 100644
--- a/testing/micropython/APKBUILD
+++ b/testing/micropython/APKBUILD
@@ -1,7 +1,7 @@
 # Contributor: Marian <marian.buschsieweke@ovgu.de>
 # Maintainer: Marian <marian.buschsieweke@ovgu.de>
 pkgname=micropython
-pkgver=1.20.0
+pkgver=1.21.0
 pkgrel=0
 pkgdesc="lean and efficient Python implementation for MCUs and constrained systems"
 url="https://www.micropython.org/"
@@ -15,9 +15,9 @@ makedepends="libffi-dev python3"
 subpackages="$pkgname-cross"
 source="https://github.com/micropython/micropython/releases/download/v$pkgver/micropython-$pkgver.tar.xz
 	micropython-1.9.4-prevent-stripping.patch
-	no_ussl.patch
+	no_ssl.patch
 	no_legacy_berkeley_db.patch
-	mpy-cross-no-werror.patch
+	no-werror.patch
 	"
 
 build() {
@@ -52,9 +52,9 @@ cross() {
 }
 
 sha512sums="
-6ad69d1d14d77555e36177344410c9d04f0d3bac009f01cc0239c5e85e9ae4cb13e6bcecc250ce5b3f55b15b507af89df0352ccef358db5905091e09ab3988d0  micropython-1.20.0.tar.xz
-eff33f41757048113d013cb30566c5d1eed72fdbd3cd7b046655efb168f39165e3bb17fa3c29a8f27039393db9363a8a12b9d75faa21fc6c370b16500a54ef52  micropython-1.9.4-prevent-stripping.patch
-35adb162eb3ffba6c17128281a4d1d4dc19807d3355f365bee89c1da61d442d4f66528335bcff77fb5a792238eb17692c6a785181236f33bb367b5c1ac3e15b3  no_ussl.patch
+219eb1264378bbcdfe8fce9f2b41a4eb081deb0dbf7ad14420595358e6e785b5926acf04fac92744b8fc1e3a4e5e1c5a65d6aff5083a1fadf5c33b16212ad8f4  micropython-1.21.0.tar.xz
+47f4923b1901bf0c8c90a15fe7188ae5c07d4c451d129c271d52d9449ac6094bf7183d5c4dc9cb38d5d5b4bf6944a715b7a3377575e9bc92bee16801d8088436  micropython-1.9.4-prevent-stripping.patch
+6e13449a4d273538d9d752de88a292ff15ef035ca55abc8c5ee4b396d3088c292f059e59a9b17594d02393a0deb28f309d6fde057ba9c2bd91e58b99f55d7c97  no_ssl.patch
 e86ad02ef746605f2f685ae776a6ad6ea39ae6e57fa0869a0c03895fd581647de20fa7e6aaeebac45e7302a63451d625208b1356ee2f35a66df70ac2755a25ff  no_legacy_berkeley_db.patch
-8b65a2a7bdfe81aac34cddb5eee0845686f3c31253744258a47ba74fc3e20a4adcaa4dfba98e4e3cba151aeadc4ca22a6a5457dc6b40a1800ca074856d43121c  mpy-cross-no-werror.patch
+99a021dc8fe8f7cd26455e9e7610e36bfb3c01182b42855a6cc3453dea29ea25fe622c3d722a71f973a1382446f6434260cc2a986d92895e187e784c57069b31  no-werror.patch
 "
diff --git a/testing/micropython/micropython-1.9.4-prevent-stripping.patch b/testing/micropython/micropython-1.9.4-prevent-stripping.patch
index 10507289c2d..b9da21e885f 100644
--- a/testing/micropython/micropython-1.9.4-prevent-stripping.patch
+++ b/testing/micropython/micropython-1.9.4-prevent-stripping.patch
@@ -1,6 +1,6 @@
---- a/py/mkenv.mk	2017-11-25 09:52:30.921836372 +0000
-+++ a/py/mkenv.mk	2017-11-25 09:52:35.257861233 +0000
-@@ -50,7 +50,6 @@
+--- a/py/mkenv.mk
++++ a/py/mkenv.mk
+@@ -52,7 +52,6 @@
  LD = $(CROSS_COMPILE)ld
  OBJCOPY = $(CROSS_COMPILE)objcopy
  SIZE = $(CROSS_COMPILE)size
@@ -8,14 +8,16 @@
  AR = $(CROSS_COMPILE)ar
  
  MAKE_MANIFEST = $(PYTHON) $(TOP)/tools/makemanifest.py
---- a/py/mkrules.mk	2017-11-25 09:53:13.107078063 +0000
-+++ a/py/mkrules.mk	2017-11-25 09:53:31.898185592 +0000
-@@ -198,9 +198,6 @@
+--- a/py/mkrules.mk
++++ a/py/mkrules.mk
+@@ -211,11 +211,6 @@
  # Do not pass COPT here - it's *C* compiler optimizations. For example,
  # we may want to compile using Thumb, but link with non-Thumb libc.
  	$(Q)$(CC) -o $@ $^ $(LIB) $(LDFLAGS)
 -ifndef DEBUG
+-ifdef STRIP
 -	$(Q)$(STRIP) $(STRIPFLAGS_EXTRA) $@
+-endif
 -endif
  	$(Q)$(SIZE) $$(find $(BUILD) -path "$(BUILD)/build/frozen*.o") $@
  
diff --git a/testing/micropython/mpy-cross-no-werror.patch b/testing/micropython/mpy-cross-no-werror.patch
deleted file mode 100644
index ebcf2f0cc01..00000000000
--- a/testing/micropython/mpy-cross-no-werror.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/mpy-cross/Makefile
-+++ b/mpy-cross/Makefile
-@@ -17,7 +17,7 @@
- INC += -I$(TOP)
- 
- # compiler settings
--CWARN = -Wall -Werror
-+CWARN = -Wall
- CWARN += -Wextra -Wno-unused-parameter -Wpointer-arith
- CFLAGS += $(INC) $(CWARN) -std=gnu99 $(COPT) $(CFLAGS_EXTRA)
- CFLAGS += -fdata-sections -ffunction-sections -fno-asynchronous-unwind-tables
diff --git a/testing/micropython/no-werror.patch b/testing/micropython/no-werror.patch
new file mode 100644
index 00000000000..4f292119cc6
--- /dev/null
+++ b/testing/micropython/no-werror.patch
@@ -0,0 +1,11 @@
+--- a/ports/unix/Makefile
++++ b/ports/unix/Makefile
+@@ -44,7 +44,7 @@
+ INC += -I$(BUILD)
+ 
+ # compiler settings
+-CWARN = -Wall -Werror
++CWARN = -Wall
+ CWARN += -Wextra -Wno-unused-parameter -Wpointer-arith -Wdouble-promotion -Wfloat-conversion
+ CFLAGS += $(INC) $(CWARN) -std=gnu99 -DUNIX $(COPT) -I$(VARIANT_DIR) $(CFLAGS_EXTRA)
+ 
diff --git a/testing/micropython/no_ussl.patch b/testing/micropython/no_ssl.patch
similarity index 83%
rename from testing/micropython/no_ussl.patch
rename to testing/micropython/no_ssl.patch
index 240275e9c69..231e60ff3d7 100644
--- a/testing/micropython/no_ussl.patch
+++ b/testing/micropython/no_ssl.patch
@@ -3,9 +3,9 @@
 @@ -24,13 +24,13 @@
  MICROPY_PY_FFI = 1
  
- # ussl module requires one of the TLS libraries below
--MICROPY_PY_USSL = 1
-+MICROPY_PY_USSL = 0
+ # ssl module requires one of the TLS libraries below
+-MICROPY_PY_SSL = 1
++MICROPY_PY_SSL = 0
  # axTLS has minimal size but implements only a subset of modern TLS
  # functionality, so may have problems with some servers.
  MICROPY_SSL_AXTLS = 0