diff --git a/block-storage/build.gradle b/block-storage/build.gradle
index 1bf9b18..dae8f5a 100644
--- a/block-storage/build.gradle
+++ b/block-storage/build.gradle
@@ -5,9 +5,9 @@ dependencies {
 	compile project(':file-utils')
 	compile project(':pdb-utils')
 	
-	compile 'org.apache.logging.log4j:log4j-core:2.10.0'
-	compile 'org.apache.logging.log4j:log4j-slf4j-impl:2.10.0'
-    compile 'org.lucares:primitiveCollections:0.1.20180908084945'
+	compile lib_log4j2_core
+	compile lib_log4j2_slf4j_impl
+    compile lib_primitive_collections
 }
 
 
diff --git a/build.gradle b/build.gradle
index 84f5e4b..2e0a782 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,10 +30,10 @@ ext {
     
     lib_primitive_collections='org.lucares:primitiveCollections:0.1.20181120195412'
     
-    lib_spring_boot_log4j2='org.springframework.boot:spring-boot-starter-log4j2:2.1.0.RELEASE'
-    lib_spring_boot_mustache='org.springframework.boot:spring-boot-starter-mustache:2.1.0.RELEASE'
-    lib_spring_boot_test='org.springframework.boot:spring-boot-starter-test:2.1.0.RELEASE'
-    lib_spring_boot_web='org.springframework.boot:spring-boot-starter-web:2.1.0.RELEASE'
+    lib_spring_boot_log4j2='org.springframework.boot:spring-boot-starter-log4j2:2.1.1.RELEASE'
+    lib_spring_boot_mustache='org.springframework.boot:spring-boot-starter-mustache:2.1.1.RELEASE'
+    lib_spring_boot_test='org.springframework.boot:spring-boot-starter-test:2.1.1.RELEASE'
+    lib_spring_boot_web='org.springframework.boot:spring-boot-starter-web:2.1.1.RELEASE'
 }
 
 /*
@@ -83,6 +83,6 @@ allprojects {
     tasks.cleanEclipseJdt.dependsOn cleanEclipseSettings
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.10.2'
+wrapper {
+    gradleVersion = '5.0'
 }
diff --git a/byte-utils/build.gradle b/byte-utils/build.gradle
index a0821b1..b6bd871 100644
--- a/byte-utils/build.gradle
+++ b/byte-utils/build.gradle
@@ -1,7 +1,5 @@
 dependencies {
-	
-
-	compile 'org.apache.logging.log4j:log4j-core:2.10.0'
-	compile 'org.apache.logging.log4j:log4j-slf4j-impl:2.10.0'
-    compile 'org.lucares:primitiveCollections:0.1.20180908084945'
+	compile lib_log4j2_core
+	compile lib_log4j2_slf4j_impl
+    compile lib_primitive_collections
 }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 1353677..457aad0 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 e0b3fb8..75b8c7c 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-4.10.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index cccdd3d..af6708f 100755
--- a/gradlew
+++ b/gradlew
@@ -28,7 +28,7 @@ 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=""
+DEFAULT_JVM_OPTS='"-Xmx64m"'
 
 # 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 e95643d..0f8d593 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@ 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=
+set DEFAULT_JVM_OPTS="-Xmx64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
diff --git a/pdb-api/build.gradle b/pdb-api/build.gradle
index 6e0851f..0ec309f 100644
--- a/pdb-api/build.gradle
+++ b/pdb-api/build.gradle
@@ -3,5 +3,5 @@ dependencies {
     compile project(':byte-utils')
 	compile project(':pdb-utils')
 	compile project(':file-utils')
-    compile 'org.lucares:primitiveCollections:0.1.20180908084945'
+    compile lib_primitive_collections
 }
\ No newline at end of file