diff --git a/.gitignore b/.gitignore
index ed7fbe6..c6f4ac3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,6 @@
 /wabt-testsuite-2a2099d.tar.gz
 /wabt-1.0.12.tar.gz
 /wabt-testsuite-a4a48e8.tar.gz
+/wabt-1.0.13.tar.gz
+/wabt-testsuite-c7225cc.tar.gz
+/wabt-wasm-c-api-d9a8009.tar.gz
diff --git a/sources b/sources
index 9f445fc..be2483f 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,3 @@
-SHA512 (wabt-1.0.12.tar.gz) = 48ab1819efbfe0151d9b1a66c2155fd11d6d3841761a949cc26329a1b51ebcc91ba07e9f18c5fd9df8bef28e7b56e1564b82398bdee19dda730019f74d2a8ec0
-SHA512 (wabt-testsuite-a4a48e8.tar.gz) = c30d672121dd82698850f5e971ede3adddf20aee72fb60e2ca73884a1635d3bdb0d78ba340e42409389c48534a88a13af8cefa2e782c91382d114d7cb55d809c
+SHA512 (wabt-1.0.13.tar.gz) = b051e7254877ccef131d6f8b26ab5587ac9c72e0cafb60e160889c7e8731f35dbb2a3488fd57f878c68006695d635eccc186738a23a6bc9747993daf3e17a6d7
+SHA512 (wabt-testsuite-c7225cc.tar.gz) = 687ef3984d6e06a06e358e8d6eea602c48da4c7b6a4e5cb7f04c110997a222f7d3a7bbe188ccd8263e20fe2af8b6ffd82a6366b8c6ef09fcba84ab49e9bc9d78
+SHA512 (wabt-wasm-c-api-d9a8009.tar.gz) = b6ee7d2d83a3ca7b3cb3ee110282f7d32eada1d9020cadd3fdec58f40478879fd9ac9fada526021d8f6e8a26e1df7353df313d4149be2ffe4aea3a28f856fd89
diff --git a/wabt-nogit.patch b/wabt-nogit.patch
new file mode 100644
index 0000000..b81032c
--- /dev/null
+++ b/wabt-nogit.patch
@@ -0,0 +1,26 @@
+diff -up wabt-1.0.13/CMakeLists.txt.nogit wabt-1.0.13/CMakeLists.txt
+--- wabt-1.0.13/CMakeLists.txt.nogit	2020-01-16 23:53:11.000000000 +0100
++++ wabt-1.0.13/CMakeLists.txt	2020-03-20 19:20:38.298804283 +0100
+@@ -69,21 +69,7 @@ include(CheckTypeSize)
+ check_type_size(ssize_t SSIZE_T)
+ check_type_size(size_t SIZEOF_SIZE_T)
+ 
+-FIND_PACKAGE(Git QUIET REQUIRED)
+-EXECUTE_PROCESS(COMMAND
+-        "${GIT_EXECUTABLE}" --git-dir=${CMAKE_CURRENT_SOURCE_DIR}/.git describe --tags
+-        RESULT_VARIABLE
+-            GIT_HASH_RESULT
+-        OUTPUT_VARIABLE
+-            GIT_HASH
+-        OUTPUT_STRIP_TRAILING_WHITESPACE)
+-
+-IF(${GIT_HASH_RESULT} EQUAL 0)
+-    SET(WABT_VERSION_INFO "${GIT_HASH}")
+-ELSE()
+-    MESSAGE(WARNING "Error running git describe to determine version")
+-    SET(WABT_VERSION_INFO "(unable to determine version)")
+-ENDIF()
++SET(WABT_VERSION_INFO "1.0.13")
+ 
+ configure_file(
+   ${WABT_SOURCE_DIR}/src/config.h.in
diff --git a/wabt-python.patch b/wabt-python.patch
deleted file mode 100644
index 6f8a640..0000000
--- a/wabt-python.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-diff -up wabt-1.0.10/CMakeLists.txt.orig wabt-1.0.10/CMakeLists.txt
---- wabt-1.0.10/CMakeLists.txt.orig	2019-03-15 12:53:00.645283108 +0100
-+++ wabt-1.0.10/CMakeLists.txt	2019-03-15 12:55:50.734311159 +0100
-@@ -425,7 +425,7 @@ if (NOT EMSCRIPTEN)
-     endif ()
- 
-     # test running
--    find_package(PythonInterp 2.7 REQUIRED)
-+    find_package(Python COMPONENTS Interpreter REQUIRED)
-     set(RUN_TESTS_PY ${WABT_SOURCE_DIR}/test/run-tests.py)
-     add_custom_target(run-tests
-       COMMAND ${CMAKE_BINARY_DIR}/wabt-unittests
-diff -up wabt-1.0.12/test/run-spec-wasm2c.py.orig wabt-1.0.12/test/run-spec-wasm2c.py
---- wabt-1.0.12/test/run-spec-wasm2c.py.orig	2019-09-25 23:04:14.000000000 +0200
-+++ wabt-1.0.12/test/run-spec-wasm2c.py	2019-10-09 10:14:41.905966919 +0200
-@@ -98,6 +98,8 @@ def MangleName(s):
-     result = 'Z_'
-     for c in s.encode('utf-8'):
-         # NOTE(binji): Z is not allowed.
-+        if type(c) == int:
-+            c=chr(c)
-         if c in '_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXY0123456789':
-             result += c
-         else:
diff --git a/wabt.spec b/wabt.spec
index 33b6cd1..22764cf 100644
--- a/wabt.spec
+++ b/wabt.spec
@@ -1,17 +1,19 @@
 %bcond_without check
-%global ts_commit a4a48e88108d555fed8a0a5e7564814468efe1b7
+%global ts_commit c7225cc210e9a089e7ce87ecac053334eb4af0aa
 %global ts_shortcommit %(c=%{ts_commit}; echo ${c:0:7})
+%global wc_commit d9a80099d496b5cdba6f3fe8fc77586e0e505ddc
+%global wc_shortcommit %(c=%{wc_commit}; echo ${c:0:7})
 
 Summary: The WebAssembly Binary Toolkit
 Name: wabt
-Version: 1.0.12
+Version: 1.0.13
 Release: 1%{?dist}
 URL: https://github.com/WebAssembly/wabt
 Source0: https://github.com/WebAssembly/wabt/archive/%{version}/%{name}-%{version}.tar.gz
 Source1: https://github.com/WebAssembly/testsuite/archive/%{ts_commit}/%{name}-testsuite-%{ts_shortcommit}.tar.gz
-# Fix python detection and port to python3
-# https://github.com/WebAssembly/wabt/issues/1181
-Patch2: wabt-python.patch
+Source2: https://github.com/WebAssembly/wasm-c-api/archive/%{wc_commit}/%{name}-wasm-c-api-%{wc_shortcommit}.tar.gz
+# hard-code version instead of using git for release tarball
+Patch0: wabt-nogit.patch
 License: ASL 2.0
 BuildRequires: cmake
 BuildRequires: gcc-c++
@@ -20,6 +22,8 @@ BuildRequires: gtest-devel
 BuildRequires: python3-ply
 BuildRequires: %{_bindir}/pathfix.py
 %endif
+# wasm.h from https://github.com/WebAssembly/wasm-c-api/ is used for build
+Provides: bundled(wasm-c-api) = %{wc_commit}
 
 %description
 WABT (we pronounce it "wabbit") is a suite of tools for WebAssembly. These tools
@@ -33,17 +37,23 @@ with the spec (e.g. 1:1 round-trips with no changes to instructions).
 
 %prep
 %setup -q
-%patch2 -p1
+%patch0 -p1
 %if %{with check}
-rmdir third_party/testsuite
+rmdir third_party/{testsuite,wasm-c-api}
 tar xzf %{S:1} -C third_party
 mv third_party/testsuite{-%{ts_commit},}
+tar xzf %{S:2} -C third_party
+mv third_party/wasm-c-api{-%{wc_commit},}
 pathfix.py -i "%{__python3} -Es" -p test/*.py
 pushd test
 # https://github.com/WebAssembly/wabt/issues/1044
 # https://github.com/WebAssembly/wabt/issues/1045
 # https://github.com/WebAssembly/wabt/issues/1063
 pushd wasm2c/spec
+# https://github.com/WebAssembly/wabt/issues/1365
+%ifarch armv7hl
+rm skip-stack-guard-page.txt
+%endif
 %ifarch i686 ppc64 ppc64le
 rm conversions.txt
 %endif
@@ -60,8 +70,6 @@ popd
 rm spec/{conversions.txt,nontrapping-float-to-int-conversions/conversions.txt}
 rm wasm2c/spec/f{32,64}.txt
 %endif
-# https://github.com/WebAssembly/wabt/issues/1180
-rm regress/regress-30.txt
 popd
 %endif
 
@@ -80,7 +88,7 @@ cd build
 # ~250 tests fail on big-endian arches
 %ifnarch ppc64 s390x
 %check
-test/run-tests.py -v --timeout=20 %{?_smp_mflags}
+test/run-tests.py -v --timeout=40 %{?_smp_mflags}
 %endif
 %endif
 
@@ -88,6 +96,7 @@ test/run-tests.py -v --timeout=20 %{?_smp_mflags}
 %license LICENSE
 %doc README.md
 %{_bindir}/spectest-interp
+%{_bindir}/wasm-decompile
 %{_bindir}/wasm-interp
 %{_bindir}/wasm-objdump
 %{_bindir}/wasm-opcodecnt
@@ -99,6 +108,7 @@ test/run-tests.py -v --timeout=20 %{?_smp_mflags}
 %{_bindir}/wat-desugar
 %{_bindir}/wat2wasm
 %{_mandir}/man1/spectest-interp.1*
+%{_mandir}/man1/wasm-decompile.1*
 %{_mandir}/man1/wasm-interp.1*
 %{_mandir}/man1/wasm-objdump.1*
 %{_mandir}/man1/wasm-opcodecnt.1*
@@ -111,6 +121,12 @@ test/run-tests.py -v --timeout=20 %{?_smp_mflags}
 %{_mandir}/man1/wat2wasm.1*
 
 %changelog
+* Fri Mar 20 2020 Dominik Mierzejewski <rpm@greysector.net> 1.0.13-1
+- update to 1.0.13 (#1792557)
+- drop obsolete patch and work-arounds
+- bundle wasm-c-api (only wasm.h used for build)
+- double test timeout again to prevent failures on armv7hl
+
 * Sat Sep 28 2019 Dominik Mierzejewski <rpm@greysector.net> 1.0.12-1
 - update to 1.0.12 (#1755644)
 - drop obsolete patch