diff --git a/examples/build.gradle.kts b/examples/build.gradle.kts
index 406b8f470..4cc6fecc0 100644
--- a/examples/build.gradle.kts
+++ b/examples/build.gradle.kts
@@ -41,9 +41,9 @@ dependencies {
 //    } else
     implementation("org.nd4j:nd4j-native-platform:1.0.0-beta7")
 
-    implementation("org.slf4j:slf4j-simple:1.7.30")
+    implementation("org.slf4j:slf4j-simple:1.7.31")
     // plotting
-    implementation("space.kscience:plotlykt-server:0.4.0")
+    implementation("space.kscience:plotlykt-server:0.4.2")
     //jafama
     implementation(project(":kmath-jafama"))
 }
diff --git a/kmath-nd4j/build.gradle.kts b/kmath-nd4j/build.gradle.kts
index 6e890a937..dcb6f1b4a 100644
--- a/kmath-nd4j/build.gradle.kts
+++ b/kmath-nd4j/build.gradle.kts
@@ -9,7 +9,7 @@ dependencies {
     api(project(":kmath-tensors"))
     api("org.nd4j:nd4j-api:1.0.0-M1")
     testImplementation("org.nd4j:nd4j-native-platform:1.0.0-M1")
-    testImplementation("org.slf4j:slf4j-simple:1.7.30")
+    testImplementation("org.slf4j:slf4j-simple:1.7.31")
 }
 
 readme {
diff --git a/kmath-symja/build.gradle.kts b/kmath-symja/build.gradle.kts
index f305c03b8..65c329d52 100644
--- a/kmath-symja/build.gradle.kts
+++ b/kmath-symja/build.gradle.kts
@@ -34,7 +34,7 @@ dependencies {
     api("org.hipparchus:hipparchus-stat:1.8")
 
     api(project(":kmath-core"))
-    testImplementation("org.slf4j:slf4j-simple:1.7.30")
+    testImplementation("org.slf4j:slf4j-simple:1.7.31")
 }
 
 readme {