diff --git a/README.md b/README.md
index 48dadd8..9c7053a 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ The main search screen remains usable as long as at least one indexed dictionary
 - DataStore Preferences 1.2.1
 - Paging 3.5.3
 - OkHttp 5.5.0
-- kotlinx.serialization 1.11.0
+- kotlinx.serialization 1.12.0
 - AboutLibraries 15.3.0 metadata generation
 - Android Gradle Plugin 9.4.1
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 1445ce6..99f2c30 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -13,7 +13,7 @@ okhttp = "5.5.0"
 paging = "3.5.3"
 profileinstaller = "1.4.1"
 kotlinx_coroutines = "1.11.0"
-kotlinx_serialization = "1.11.0"
+kotlinx_serialization = "1.12.0"
 
 [libraries]
 androidx-activity-compose = { module = "androidx.activity:activity-compose", version.ref = "activity_compose" }