diff --git a/net-im/prosody/Makefile b/net-im/prosody/Makefile
index 174bba916841..b61ae4c11ae8 100644
--- a/net-im/prosody/Makefile
+++ b/net-im/prosody/Makefile
@@ -1,54 +1,55 @@
 # Created by: Andrew Lewis <freeghb@gmail.com>
 
 PORTNAME=	prosody
 PORTVERSION=	0.11.10
+PORTREVISION=	1
 CATEGORIES=	net-im
 MASTER_SITES=	https://prosody.im/downloads/source/
 
 MAINTAINER=	thomas@beingboiled.info
 COMMENT=	Simple extensible XMPP server written in Lua
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 RUN_DEPENDS=	${LUA_REFMODLIBDIR}/socket/core.so:net/luasocket@${LUA_FLAVOR} \
 		${LUA_REFMODLIBDIR}/ssl.so:security/luasec@${LUA_FLAVOR} \
 		${LUA_REFMODLIBDIR}/lxp.so:textproc/luaexpat@${LUA_FLAVOR} \
 		${LUA_REFMODLIBDIR}/lfs.so:devel/luafilesystem@${LUA_FLAVOR} \
 		${LUA_REFMODLIBDIR}/bit.so:devel/lua-bitop@${LUA_FLAVOR}
 LIB_DEPENDS=	libidn.so:dns/libidn
 
-USES=		compiler:c11 cpe gmake lua:52 shebangfix ssl
+USES=		cpe gmake lua:52 shebangfix ssl
 SHEBANG_FILES=	prosody prosodyctl tools/migration/prosody-migrator.lua
 LUA_PREMK=	yes
 HAS_CONFIGURE=	yes
 CONFIGURE_ARGS=	--prefix="${PREFIX}" \
 		--datadir="/var/db/prosody" \
 		--lua-version="${LUA_VER}" \
 		--lua-suffix="${LUA_VER_STR}" \
 		--with-lua-include="${LUA_INCDIR}" \
 		--with-lua-lib="${LUA_LIBDIR}" \
 		--with-random=arc4random \
 		--c-compiler="${CC}" \
 		--cflags="${CFLAGS}" \
-		--add-cflags="-fPIC -std=c99 -I${LOCALBASE}/include -I${OPENSSLINC}" \
+		--add-cflags="-fPIC -I${LOCALBASE}/include -I${OPENSSLINC}" \
 		--linker="${CC}" \
 		--ldflags="${LDFLAGS}" \
 		--add-ldflags="-shared -L${LOCALBASE}/lib -L${OPENSSLLIB}" \
 		--no-example-certs
 
 MAKEFILE=	GNUmakefile
 USERS=		prosody
 GROUPS=		${USERS}
 
 USE_RC_SUBR=	prosody
 SUB_FILES=	pkg-deinstall
 SUB_LIST=	USERS=${USERS} GROUPS=${GROUPS} LUA_PREFIX=${LUA_PREFIX} LUA_CMD=${LUA_CMD}
 PLIST_SUB=	PROSODY_USER=${USERS} PROSODY_GROUP=${GROUPS}
 
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/prosody/util/*.so
 	@${MKDIR} ${STAGEDIR}/var/run/prosody
 	@${RM} ${STAGEDIR}${ETCDIR}/certs/*
 
 .include <bsd.port.mk>
diff --git a/net-im/prosody/files/patch-util-src_pposix.c b/net-im/prosody/files/patch-util-src_pposix.c
new file mode 100644
index 000000000000..169c5962b4fc
--- /dev/null
+++ b/net-im/prosody/files/patch-util-src_pposix.c
@@ -0,0 +1,12 @@
+--- util-src/pposix.c.orig	2021-08-03 09:53:04 UTC
++++ util-src/pposix.c
+@@ -30,9 +30,6 @@
+ #define _DARWIN_C_SOURCE
+ #endif
+ #endif
+-#ifndef _POSIX_C_SOURCE
+-#define _POSIX_C_SOURCE 200809L
+-#endif
+ 
+ #include <stdlib.h>
+ #include <math.h>
diff --git a/net-im/prosody/files/patch-util-src_time.c b/net-im/prosody/files/patch-util-src_time.c
index 4339e8c3fb36..465372f39dff 100644
--- a/net-im/prosody/files/patch-util-src_time.c
+++ b/net-im/prosody/files/patch-util-src_time.c
@@ -1,9 +1,10 @@
---- util-src/time.c.orig	2020-01-02 09:49:37 UTC
+--- util-src/time.c.orig	2021-08-03 09:53:04 UTC
 +++ util-src/time.c
-@@ -1,5 +1,5 @@
- #ifndef _POSIX_C_SOURCE
+@@ -1,7 +1,3 @@
+-#ifndef _POSIX_C_SOURCE
 -#define _POSIX_C_SOURCE 199309L
-+#define _POSIX_C_SOURCE 200809L
- #endif
- 
+-#endif
+-
  #include <time.h>
+ #include <lua.h>
+