diff --git a/.idea/kotlinc.xml b/.idea/kotlinc.xml
index f8467b4..e805548 100644
--- a/.idea/kotlinc.xml
+++ b/.idea/kotlinc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="KotlinJpsPluginSettings">
-    <option name="version" value="1.9.10" />
+    <option name="version" value="1.9.20" />
   </component>
 </project>
\ No newline at end of file
diff --git a/tools/gradle/libs.versions.toml b/tools/gradle/libs.versions.toml
index 1ac4718..cde468c 100644
--- a/tools/gradle/libs.versions.toml
+++ b/tools/gradle/libs.versions.toml
@@ -6,7 +6,8 @@ com-benasher44-uuid = "com.benasher44:uuid:0.8.2"
 # @keep
 org-ajoberstar-grgit-gradle-plugin = { module = "org.ajoberstar.grgit:org.ajoberstar.grgit.gradle.plugin", version.ref = "org-ajoberstar-grgit" }
 org-ajoberstar-grgit-grgit-core = { module = "org.ajoberstar.grgit:grgit-core", version.ref = "org-ajoberstar-grgit" }
-org-jetbrains-kotlinx-kotlinx-datetime = "org.jetbrains.kotlinx:kotlinx-datetime:0.5.0"
+# @pin
+org-jetbrains-kotlinx-kotlinx-datetime = "org.jetbrains.kotlinx:kotlinx-datetime:0.4.1"
 # @pin
 org-jetbrains-kotlinx-kotlinx-serialization-bom = "org.jetbrains.kotlinx:kotlinx-serialization-bom:1.6.0"
 org-junit-junit-bom = "org.junit:junit-bom:5.10.1"