diff --git a/uhabits-android/build.gradle.kts b/uhabits-android/build.gradle.kts
index 3d97312e4..1caad46f7 100644
--- a/uhabits-android/build.gradle.kts
+++ b/uhabits-android/build.gradle.kts
@@ -89,7 +89,7 @@ dependencies {
     val daggerVersion = "2.40"
     val kotlinVersion = "1.5.31"
     val kxCoroutinesVersion = "1.5.2"
-    val ktorVersion = "1.6.4"
+    val ktorVersion = "1.6.6"
     val espressoVersion = "3.4.0"
 
     androidTestImplementation("androidx.test.espresso:espresso-contrib:$espressoVersion")
diff --git a/uhabits-server/build.gradle.kts b/uhabits-server/build.gradle.kts
index 2dd787bb4..81326f2bf 100644
--- a/uhabits-server/build.gradle.kts
+++ b/uhabits-server/build.gradle.kts
@@ -33,7 +33,7 @@ application {
 }
 
 dependencies {
-    val ktorVersion = "1.6.4"
+    val ktorVersion = "1.6.6"
     val kotlinVersion = "1.5.31"
     val logbackVersion = "1.2.6"
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlinVersion")