diff --git a/org.hl7.fhir.convertors/pom.xml b/org.hl7.fhir.convertors/pom.xml
index 974eeaa75..0d453880f 100644
--- a/org.hl7.fhir.convertors/pom.xml
+++ b/org.hl7.fhir.convertors/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>4.2.30-SNAPSHOT</version>
+        <version>5.0.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
@@ -31,6 +31,13 @@
             <artifactId>org.hl7.fhir.utilities</artifactId>
         </dependency>
 
+        <!-- JSON Parsers -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <!-- FHIR Versions -->
         <dependency>
             <groupId>ca.uhn.hapi.fhir</groupId>
diff --git a/org.hl7.fhir.dstu2/pom.xml b/org.hl7.fhir.dstu2/pom.xml
index e2f1b5230..04931436d 100644
--- a/org.hl7.fhir.dstu2/pom.xml
+++ b/org.hl7.fhir.dstu2/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>4.2.30-SNAPSHOT</version>
+		<version>5.0.1-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -44,6 +44,13 @@
             <optional>true</optional>
         </dependency>
 
+        <!-- JSON Parsers -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <!-- Apache POI -->
         <dependency>
             <groupId>org.apache.poi</groupId>
diff --git a/org.hl7.fhir.dstu2016may/pom.xml b/org.hl7.fhir.dstu2016may/pom.xml
index 6fb612280..d407a5c69 100644
--- a/org.hl7.fhir.dstu2016may/pom.xml
+++ b/org.hl7.fhir.dstu2016may/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>4.2.30-SNAPSHOT</version>
+		<version>5.0.1-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -58,6 +58,13 @@
             <optional>true</optional>
         </dependency>
 
+        <!-- JSON Parsers -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <!-- Apache POI -->
         <dependency>
             <groupId>org.apache.poi</groupId>
diff --git a/org.hl7.fhir.dstu3/pom.xml b/org.hl7.fhir.dstu3/pom.xml
index a6e2bf261..5501f8d07 100644
--- a/org.hl7.fhir.dstu3/pom.xml
+++ b/org.hl7.fhir.dstu3/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>4.2.30-SNAPSHOT</version>
+        <version>5.0.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
@@ -44,6 +44,13 @@
             <optional>true</optional>
         </dependency>
 
+        <!-- JSON Parsers -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <!-- Apache POI -->
         <dependency>
             <groupId>org.apache.poi</groupId>
diff --git a/org.hl7.fhir.r4/pom.xml b/org.hl7.fhir.r4/pom.xml
index c3393f035..bd7c59f50 100644
--- a/org.hl7.fhir.r4/pom.xml
+++ b/org.hl7.fhir.r4/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>4.2.30-SNAPSHOT</version>
+		<version>5.0.1-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -50,6 +50,13 @@
 			<optional>true</optional>
 		</dependency>
 
+		<!-- JSON Parsers -->
+		<dependency>
+			<groupId>com.google.code.gson</groupId>
+			<artifactId>gson</artifactId>
+			<optional>true</optional>
+		</dependency>
+
 		<!-- Apache POI -->
 		<dependency>
 			<groupId>org.apache.poi</groupId>
diff --git a/org.hl7.fhir.r5/pom.xml b/org.hl7.fhir.r5/pom.xml
index 3b8609e66..cff312050 100644
--- a/org.hl7.fhir.r5/pom.xml
+++ b/org.hl7.fhir.r5/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>4.2.30-SNAPSHOT</version>
+		<version>5.0.1-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -50,6 +50,13 @@
 			<optional>true</optional>
 		</dependency>
 
+		<!-- JSON Parsers -->
+		<dependency>
+			<groupId>com.google.code.gson</groupId>
+			<artifactId>gson</artifactId>
+			<optional>true</optional>
+		</dependency>
+
 		<!-- Apache POI -->
 		<dependency>
 			<groupId>org.apache.poi</groupId>
diff --git a/org.hl7.fhir.report/pom.xml b/org.hl7.fhir.report/pom.xml
index f16f41d47..7ea3c1179 100644
--- a/org.hl7.fhir.report/pom.xml
+++ b/org.hl7.fhir.report/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>4.2.30-SNAPSHOT</version>
+        <version>5.0.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.utilities/pom.xml b/org.hl7.fhir.utilities/pom.xml
index 01c5af246..e3f517666 100644
--- a/org.hl7.fhir.utilities/pom.xml
+++ b/org.hl7.fhir.utilities/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>4.2.30-SNAPSHOT</version>
+        <version>5.0.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
@@ -43,6 +43,13 @@
             <optional>true</optional>
         </dependency>
 
+        <!-- JSON Utilities -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <!-- XML Utilities -->
         <dependency>
             <groupId>net.sf.saxon</groupId>
diff --git a/org.hl7.fhir.validation.cli/pom.xml b/org.hl7.fhir.validation.cli/pom.xml
index fdcca042a..2ef89db33 100644
--- a/org.hl7.fhir.validation.cli/pom.xml
+++ b/org.hl7.fhir.validation.cli/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>4.2.30-SNAPSHOT</version>
+        <version>5.0.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.validation/pom.xml b/org.hl7.fhir.validation/pom.xml
index d3daf3a04..4e1c3783b 100644
--- a/org.hl7.fhir.validation/pom.xml
+++ b/org.hl7.fhir.validation/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>4.2.30-SNAPSHOT</version>
+        <version>5.0.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
@@ -81,6 +81,12 @@
             <artifactId>xpp3_xpath</artifactId>
         </dependency>
 
+        <!-- JSON Utilities -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+        </dependency>
+
         <!-- JSON Schema -->
         <dependency>
             <groupId>org.everit.json</groupId>
diff --git a/pom.xml b/pom.xml
index 040b5831b..485dd96d0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,10 +13,10 @@
     each other. It is fine to bump the point version of this POM without affecting
     HAPI FHIR.
     -->
-    <version>4.2.30-SNAPSHOT</version>
+    <version>5.0.1-SNAPSHOT</version>
 
     <properties>
-        <hapi_fhir_version>4.2.0</hapi_fhir_version>
+        <hapi_fhir_version>5.0.0</hapi_fhir_version>
         <validator_test_case_version>1.1.14-SNAPSHOT</validator_test_case_version>
         <junit_jupiter_version>5.6.2</junit_jupiter_version>
         <maven_surefire_version>3.0.0-M4</maven_surefire_version>