diff --git a/_data/signed/alakotka b/_data/signed/alakotka.yaml
similarity index 100%
rename from _data/signed/alakotka
rename to _data/signed/alakotka.yaml
diff --git a/_data/signed/jplie b/_data/signed/jplie.yaml
similarity index 100%
rename from _data/signed/jplie
rename to _data/signed/jplie.yaml
diff --git a/_data/signed/pzi2021 b/_data/signed/pzi2021.yaml
similarity index 100%
rename from _data/signed/pzi2021
rename to _data/signed/pzi2021.yaml