Another try

dists/gcc5/Release.gpg

@@ -1,7 +1,7 @@
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
-iEYEABEIAAYFAlfekhoACgkQLTRFqCkhODc7hgCgmUzflgjOip3Ebyc+R/wCR0Jq
-8GcAn2Ld/VOOZNsoUVt8itmiRNSQyHQ2
-=s4Yi
+iEYEABEKAAYFAlfek4sACgkQLTRFqCkhODdONwCfVT6AGtuB68/e+hoUXK9kZAfw
+6bcAn2IHtwgVZUxrcy626CErBhBHsCAz
+=eXiN
 -----END PGP SIGNATURE-----

dists/stable/Release.gpg

@@ -1,7 +1,7 @@
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
-iEYEABEIAAYFAlfekhoACgkQLTRFqCkhODcMdACcC4sPJLSRLMdN8WWJ8quzh1jY
-hxAAn2/GYqOIcCX6Z5IlayKl6cLH+W/Z
-=zDE+
+iEYEABEKAAYFAlfek3kACgkQLTRFqCkhODdxrACeMMdM9v52sFejoqQGd4PuwaUS
+nUMAn3CpAqH0fctEv0cUynx9Ef4GahEL
+=GrD2
 -----END PGP SIGNATURE-----

update-repo

@@ -51,5 +51,5 @@ mv Release.gcc5 dists/gcc5/Release
 
 rm -f pool/*/*.deb
 
-gpg --default-key 29213837 --digest-algo sha256 --output dists/stable/Release.gpg -ba dists/stable/Release
-gpg --default-key 29213837 --digest-algo sha256 --output dists/gcc5/Release.gpg -ba dists/gcc5/Release
+gpg --default-key 29213837 --digest-algo sha512 --s2k-digest-algo sha512 --output dists/stable/Release.gpg -ba dists/stable/Release
+gpg --default-key 29213837 --digest-algo sha512 --s2k-digest-algo sha512 --output dists/gcc5/Release.gpg -ba dists/gcc5/Release