diff --git a/metadata/md5-cache/dev-libs/tfdn-1.6.0 b/metadata/md5-cache/dev-libs/tfdn-1.8.1
similarity index 89%
rename from metadata/md5-cache/dev-libs/tfdn-1.6.0
rename to metadata/md5-cache/dev-libs/tfdn-1.8.1
index a479043d9f..68af7acef7 100644
--- a/metadata/md5-cache/dev-libs/tfdn-1.6.0
+++ b/metadata/md5-cache/dev-libs/tfdn-1.8.1
@@ -4,12 +4,12 @@ DEPEND=dev-libs/libpcre2:= dev-libs/libunistring:= sys-libs/zlib:= curl? ( net-m
 DESCRIPTION=Opinionated C11 library for low-level functionality
 EAPI=8
 HOMEPAGE=https://git.skyjake.fi/skyjake/the_Foundation
-INHERIT=cmake docs
+INHERIT=cmake docs flag-o-matic
 IUSE=cpu_flags_x86_sse4_1 curl debug ssl doc
 KEYWORDS=~amd64 ~x86
 LICENSE=BSD-2
 RDEPEND=dev-libs/libpcre2:= dev-libs/libunistring:= sys-libs/zlib:= curl? ( net-misc/curl ) ssl? ( dev-libs/openssl:= )
-SLOT=0/1.6
-SRC_URI=https://git.skyjake.fi/skyjake/the_foundation/archive/v1.6.0.tar.gz -> tfdn-1.6.0.tar.gz
+SLOT=0/1.7
+SRC_URI=https://git.skyjake.fi/skyjake/the_foundation/archive/v1.8.1.tar.gz -> tfdn-1.8.1.tar.gz
 _eclasses_=toolchain-funcs	e56c7649b804f051623c8bc1a1c44084	multilib	c19072c3cd7ac5cb21de013f7e9832e0	flag-o-matic	288c54efeb5e2aa70775e39032695ad4	multiprocessing	30ead54fa2e2b5f9cd4e612ffc34d0fe	ninja-utils	2df4e452cea39a9ec8fb543ce059f8d6	xdg-utils	baea6080dd821f5562d715887954c9d3	cmake	c7c9a62d6232cac66d4ea32d575c3e7c	docs	7f3c0d47338743498c69f1887a139f57
-_md5_=c9e1b90f2d23cd6fc3ddb03ba8642ecd
+_md5_=8026e418fb526cf44eaf2606ac4238b7
diff --git a/metadata/pkg_desc_index b/metadata/pkg_desc_index
index c2246d3226..8f83c386b9 100644
--- a/metadata/pkg_desc_index
+++ b/metadata/pkg_desc_index
@@ -534,7 +534,7 @@ dev-libs/randomx 1.1.8 1.1.9 1.2.1: Proof of work algorithm based on random code
 dev-libs/sealcurses 2.0.18_pre20230206 2.0.18_pre20230811: SDL Emulation and Adaptation Layer for Curses
 dev-libs/sirit 0_p20220725: A runtime SPIR-V assembler
 dev-libs/supercop 0_p20200827: Fast cryptographic operations for Monero wallets
-dev-libs/tfdn 1.6.0 1.7.0: Opinionated C11 library for low-level functionality
+dev-libs/tfdn 1.7.0 1.8.1: Opinionated C11 library for low-level functionality
 dev-libs/toml-f 0.4.0 0.4.1 0.4.2: TOML parser implementation for data serialization and deserialization in Fortran
 dev-libs/tweeny 3.1.1 3.2.0: C++ tweening (inbetweening) library
 dev-libs/unordered_dense 4.0.1 4.4.0 9999: A fast and densely stored hashmap and hashset
diff --git a/metadata/timestamp.chk b/metadata/timestamp.chk
index 170a22f156..eabe27cf2b 100644
--- a/metadata/timestamp.chk
+++ b/metadata/timestamp.chk
@@ -1 +1 @@
-Sun, 14 Apr 2024 15:18:18 +0000
+Sun, 14 Apr 2024 15:33:22 +0000