diff --git a/contrib/guix/libexec/prelude.bash b/contrib/guix/libexec/prelude.bash
index d25c371a10c..b7c13cc91d8 100644
--- a/contrib/guix/libexec/prelude.bash
+++ b/contrib/guix/libexec/prelude.bash
@@ -71,7 +71,7 @@ fi
 time-machine() {
     # shellcheck disable=SC2086
     guix time-machine --url=https://codeberg.org/guix/guix.git \
-                      --commit=53396a22afc04536ddf75d8f82ad2eafa5082725 \
+                      --commit=5cb84f2013c5b1e48a7d0e617032266f1e6059e2 \
                       --cores="$JOBS" \
                       --keep-failed \
                       --fallback \
diff --git a/contrib/guix/manifest.scm b/contrib/guix/manifest.scm
index 795e45dc928..469a332e56b 100644
--- a/contrib/guix/manifest.scm
+++ b/contrib/guix/manifest.scm
@@ -455,7 +455,7 @@ inspecting signatures in Mach-O binaries.")
 (define-public glibc-2.31
   (let ((commit "7b27c450c34563a28e634cccb399cd415e71ebfe"))
   (package
-    (inherit glibc) ;; 2.35
+    (inherit glibc) ;; 2.39
     (version "2.31")
     (source (origin
               (method git-fetch)