diff --git a/build.gradle b/build.gradle
index d5202fc00..99c450a6f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,11 +16,11 @@ allprojects {
     version = "3.0.2"
 
     project.ext {
-        junitVersion = "5.4.0"
-        junitextensionsVersion = "2.3.0"
-        awaitilityVersion = "3.1.6"
+        junitVersion = "5.4.1"
+        junitextensionsVersion = "2.3.0"    // https://github.com/glytching/junit-extensions
+        awaitilityVersion = "3.1.6"         // https://github.com/awaitility/awaitility
 
-        picocliVersion = "3.5.2"
+        picocliVersion = "3.9.5"
 
         apachePoiVersion = "4.0.1"
         commonsCsvVersion = "1.6"
@@ -33,7 +33,7 @@ allprojects {
         xstreamVersion = "1.4.11.1"
 
         hibernateVersion = "5.4.2.Final"
-        hikariVersion = "3.3.1"
+        hikariVersion = "3.3.1"             // https://github.com/brettwooldridge/HikariCP
         
         pdfBoxVersion = "2.0.14"
 
@@ -77,7 +77,7 @@ subprojects {
 }
 
 wrapper {
-    gradleVersion = "5.3"
+    gradleVersion = "5.3.1"
 }
 
 task distZip {
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 87b738cbd..5c2d1cf01 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 638521d6b..7b4d6f570 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
-#Sat Mar 23 05:13:32 EDT 2019
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.3-all.zip
+#Sun Mar 31 05:43:44 EDT 2019
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.3.1-all.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index af6708ff2..b0d6d0ab5 100755
--- a/gradlew
+++ b/gradlew
@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m"'
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
diff --git a/gradlew.bat b/gradlew.bat
index 0f8d5937c..15e1ee37a 100755
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -14,7 +30,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m"
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome