diff --git a/mkosi/mkosi.conf.d/arch/mkosi.conf b/mkosi/mkosi.conf.d/arch/mkosi.conf
index 5807dcdef0..f7d9e44c1a 100644
--- a/mkosi/mkosi.conf.d/arch/mkosi.conf
+++ b/mkosi/mkosi.conf.d/arch/mkosi.conf
@@ -31,6 +31,7 @@ Packages=
         iproute
         iputils
         knot
+        libucontext
         linux
         man-db
         multipath-tools
diff --git a/mkosi/mkosi.conf.d/centos-fedora/mkosi.conf b/mkosi/mkosi.conf.d/centos-fedora/mkosi.conf
index af514aadd1..b78706aeb9 100644
--- a/mkosi/mkosi.conf.d/centos-fedora/mkosi.conf
+++ b/mkosi/mkosi.conf.d/centos-fedora/mkosi.conf
@@ -43,6 +43,7 @@ Packages=
         kernel-core
         knot
         libcap-ng-utils
+        libucontext
         man-db
         nmap-ncat
         openssh-clients
diff --git a/mkosi/mkosi.images/build/mkosi.conf.d/arch/mkosi.conf b/mkosi/mkosi.images/build/mkosi.conf.d/arch/mkosi.conf
index d7a79d11c1..59c7ed6cae 100644
--- a/mkosi/mkosi.images/build/mkosi.conf.d/arch/mkosi.conf
+++ b/mkosi/mkosi.images/build/mkosi.conf.d/arch/mkosi.conf
@@ -10,3 +10,4 @@ Packages=
         diffutils
         erofs-utils
         git
+        libucontext
diff --git a/mkosi/mkosi.images/build/mkosi.conf.d/centos-fedora/mkosi.conf b/mkosi/mkosi.images/build/mkosi.conf.d/centos-fedora/mkosi.conf
index 4d0ca8917d..35bc886f40 100644
--- a/mkosi/mkosi.images/build/mkosi.conf.d/centos-fedora/mkosi.conf
+++ b/mkosi/mkosi.images/build/mkosi.conf.d/centos-fedora/mkosi.conf
@@ -12,5 +12,6 @@ Packages=
         git-core
         libasan
         libubsan
+        libucontext-devel
         rpm-build
         which
diff --git a/mkosi/mkosi.tools.conf/mkosi.conf.d/arch.conf b/mkosi/mkosi.tools.conf/mkosi.conf.d/arch.conf
index 2348d30286..8eec906c5c 100644
--- a/mkosi/mkosi.tools.conf/mkosi.conf.d/arch.conf
+++ b/mkosi/mkosi.tools.conf/mkosi.conf.d/arch.conf
@@ -10,6 +10,7 @@ Packages=
         clang-tools-extra
         github-cli
         lcov
+        libucontext
         mypy
         pkgconf
         ruff
diff --git a/mkosi/mkosi.tools.conf/mkosi.conf.d/centos-fedora.conf b/mkosi/mkosi.tools.conf/mkosi.conf.d/centos-fedora.conf
index 7c61681117..bc998baad6 100644
--- a/mkosi/mkosi.tools.conf/mkosi.conf.d/centos-fedora.conf
+++ b/mkosi/mkosi.tools.conf/mkosi.conf.d/centos-fedora.conf
@@ -12,4 +12,5 @@ Packages=
         rpm-build
         libasan
         libubsan
+        libucontext-devel
         compiler-rt