diff --git a/README.md b/README.md
index 6dee72b..3b342cd 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 ## start Angular development server
 ```
 cd pdb-js
-build/npm/npm-v6.14.8/bin/npm run ng serve
+build/npm/npm-v8.1.2/bin/npm run ng serve
 ```
 or 
 
@@ -15,7 +15,7 @@ gradlew npm_run_ng_serve
 
 ```
 cd pdb-js
-build/npm/npm-v6.14.8/bin/npm run ng generate component component-name
+build/npm/npm-v8.1.2/bin/npm run ng generate component component-name
 ```
 
 ## update JavaScript libraries
diff --git a/build.gradle b/build.gradle
index b980db6..1fac016 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,14 +12,14 @@ ext {
 
   javaVersion=16
 
-  version_log4j2= '2.14.1' // keep in sync with spring-boot-starter-log4j2
-  version_spring = '2.5.5'
-  version_junit = '5.8.1'
-  version_junit_platform = '1.8.1'
-  version_nodejs = '14.17.3' // keep in sync with npm
-  version_npm = '6.14.13'    // keep in sync with nodejs
+  version_log4j2= '2.15.0' // keep in sync with spring-boot-starter-log4j2
+  version_spring = '2.6.1'
+  version_junit = '5.8.2'
+  version_junit_platform = '1.8.2'
+  version_nodejs = '16.13.1' // keep in sync with npm
+  version_npm = '8.1.2'    // keep in sync with nodejs
 
-  lib_antlr = "org.antlr:antlr4:4.9.2"
+  lib_antlr = "org.antlr:antlr4:4.9.3"
 
   lib_commons_collections4 = 'org.apache.commons:commons-collections4:4.4'
   lib_commons_csv= 'org.apache.commons:commons-csv:1.9.0'
@@ -136,5 +136,5 @@ subprojects {
 }
 
 wrapper {
-  gradleVersion = '7.2'
+  gradleVersion = '7.3.1'
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ffed3a2..84d1f85 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists