diff --git a/strings/cs.json b/strings/cs.json
index 30f25a27..e9ee37ac 100644
--- a/strings/cs.json
+++ b/strings/cs.json
@@ -161,7 +161,7 @@
   "LabelHapticFeedback": "Haptická odezva",
   "LabelHasEbook": "Má e-knihu",
   "LabelHasSupplementaryEbook": "Obsahuje doplňkovou e-knihu",
-  "LabelHeavy": "Těžké",
+  "LabelHeavy": "Silná",
   "LabelHigh": "Vysoké",
   "LabelHost": "Hostitel",
   "LabelInProgress": "Probíhá",
@@ -204,7 +204,7 @@
   "LabelNumEpisodes": "{0} epizod",
   "LabelNumEpisodesIncomplete": "{0} epizod, {1} nekompletní",
   "LabelNumberOfEpisodes": "Počet epizod",
-  "LabelOff": "Vypnout",
+  "LabelOff": "Vypnutá",
   "LabelOn": "Zapnuto",
   "LabelPassword": "Heslo",
   "LabelPath": "Cesta",