diff --git a/abi_used_libs b/abi_used_libs
index 4f493da..032b6d0 100644
--- a/abi_used_libs
+++ b/abi_used_libs
@@ -1,4 +1,3 @@
 ld-linux-x86-64.so.2
 libc.so.6
 libm.so.6
-libpthread.so.0
diff --git a/abi_used_symbols b/abi_used_symbols
index f72c3da..44015dc 100644
--- a/abi_used_symbols
+++ b/abi_used_symbols
@@ -3,6 +3,7 @@ libc.so.6:__assert_fail
 libc.so.6:__ctype_get_mb_cur_max
 libc.so.6:__cxa_atexit
 libc.so.6:__duplocale
+libc.so.6:__errno_location
 libc.so.6:__fprintf_chk
 libc.so.6:__freelocale
 libc.so.6:__isoc99_fscanf
@@ -33,6 +34,7 @@ libc.so.6:_exit
 libc.so.6:abort
 libc.so.6:bind_textdomain_codeset
 libc.so.6:btowc
+libc.so.6:close
 libc.so.6:closedir
 libc.so.6:dgettext
 libc.so.6:dl_iterate_phdr
@@ -72,6 +74,7 @@ libc.so.6:isprint
 libc.so.6:isspace
 libc.so.6:isupper
 libc.so.6:isxdigit
+libc.so.6:lseek64
 libc.so.6:malloc
 libc.so.6:mbrtowc
 libc.so.6:mbsnrtowcs
@@ -82,13 +85,18 @@ libc.so.6:memcpy
 libc.so.6:memmove
 libc.so.6:memset
 libc.so.6:mkdir
+libc.so.6:open
 libc.so.6:opendir
 libc.so.6:pipe
 libc.so.6:poll
 libc.so.6:printf
+libc.so.6:pthread_mutex_lock
+libc.so.6:pthread_mutex_unlock
+libc.so.6:pthread_once
 libc.so.6:putc
 libc.so.6:putwc
 libc.so.6:qsort
+libc.so.6:read
 libc.so.6:readdir
 libc.so.6:realloc
 libc.so.6:setenv
@@ -134,6 +142,7 @@ libc.so.6:wmemchr
 libc.so.6:wmemcpy
 libc.so.6:wmemmove
 libc.so.6:wmemset
+libc.so.6:write
 libc.so.6:writev
 libm.so.6:acos
 libm.so.6:acosh
@@ -157,9 +166,3 @@ libm.so.6:sinh
 libm.so.6:sqrt
 libm.so.6:tan
 libm.so.6:tanh
-libpthread.so.0:__errno_location
-libpthread.so.0:close
-libpthread.so.0:lseek64
-libpthread.so.0:open
-libpthread.so.0:read
-libpthread.so.0:write
diff --git a/package.yml b/package.yml
index 5ca6a9b..ddb3553 100644
--- a/package.yml
+++ b/package.yml
@@ -1,8 +1,8 @@
 name       : verilator
-version    : '4.220'
-release    : 28
+version    : '4.222'
+release    : 29
 source     :
-    - https://github.com/verilator/verilator/archive/refs/tags/v4.220.tar.gz : e00e0c31a0c00887bebbaf7a8c771efa09420a4d1fbae54d45843baf50df4426
+    - https://github.com/verilator/verilator/archive/refs/tags/v4.222.tar.gz : 15c60175807c0f3536c3c5b435f131c2b1e8725aefd30645efd946bf401b4c84
 license    :
     - LGPL-3.0-only
     - Artistic-2.0
diff --git a/pspec_x86_64.xml b/pspec_x86_64.xml
index 8aa219d..c420c83 100644
--- a/pspec_x86_64.xml
+++ b/pspec_x86_64.xml
@@ -97,6 +97,7 @@
             <Path fileType="data">/usr/share/verilator/include/verilated_heavy.h</Path>
             <Path fileType="data">/usr/share/verilator/include/verilated_imp.h</Path>
             <Path fileType="data">/usr/share/verilator/include/verilated_intrinsics.h</Path>
+            <Path fileType="data">/usr/share/verilator/include/verilated_profiler.cpp</Path>
             <Path fileType="data">/usr/share/verilator/include/verilated_profiler.h</Path>
             <Path fileType="data">/usr/share/verilator/include/verilated_save.cpp</Path>
             <Path fileType="data">/usr/share/verilator/include/verilated_save.h</Path>
@@ -129,16 +130,16 @@
 </Description>
         <PartOf>programming.devel</PartOf>
         <RuntimeDependencies>
-            <Dependency release="28">verilator</Dependency>
+            <Dependency release="29">verilator</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="data">/usr/share/pkgconfig/verilator.pc</Path>
         </Files>
     </Package>
     <History>
-        <Update release="28">
-            <Date>2022-03-12</Date>
-            <Version>4.220</Version>
+        <Update release="29">
+            <Date>2022-05-06</Date>
+            <Version>4.222</Version>
             <Comment>Packaging update</Comment>
             <Name>David Harder</Name>
             <Email>david@davidjharder.ca</Email>