diff --git a/constants.properties b/constants.properties
index c8bd8d9ded..31a1dfef78 100644
--- a/constants.properties
+++ b/constants.properties
@@ -29,7 +29,7 @@ snakeYamlVersion=1.19
 caffeineVersion=2.7.0
 metricsVersion=4.1.0
 metricsNewRelicVersion=1.1.1
-djvmVersion=5.0-SNAPSHOT
+djvmVersion=1.0-SNAPSHOT
 openSourceBranch=https://github.com/corda/corda/blob/master
 openSourceSamplesBranch=https://github.com/corda/samples/blob/master
 jolokiaAgentVersion=1.6.1
diff --git a/node/build.gradle b/node/build.gradle
index d619cdb6c9..6b9a0cc1ba 100644
--- a/node/build.gradle
+++ b/node/build.gradle
@@ -180,15 +180,15 @@ dependencies {
     compile "com.typesafe:config:$typesafe_config_version"
 
     // Sandbox for deterministic contract verification
-    compile "net.corda:corda-djvm:$djvm_version"
-    compile "net.corda:corda-djvm-serialization:$djvm_version"
+    compile "net.corda.djvm:corda-djvm:$djvm_version"
+    compile "net.corda.djvm:corda-djvm-serialization:$djvm_version"
     compile(project(':node:djvm')) {
         transitive = false
     }
     jdkRt "net.corda:deterministic-rt:latest.integration"
     deterministic project(path: ':core-deterministic', configuration: 'deterministicArtifacts')
     deterministic project(path: ':serialization-deterministic', configuration: 'deterministicArtifacts')
-    deterministic("net.corda:corda-djvm-deserializers:$djvm_version") {
+    deterministic("net.corda.djvm:corda-djvm-deserializers:$djvm_version") {
         transitive = false
     }
     deterministic(project(':node:djvm')) {
diff --git a/node/src/main/kotlin/net/corda/node/internal/djvm/DeterministicVerifier.kt b/node/src/main/kotlin/net/corda/node/internal/djvm/DeterministicVerifier.kt
index 99d3d1d0d3..c5a85c016c 100644
--- a/node/src/main/kotlin/net/corda/node/internal/djvm/DeterministicVerifier.kt
+++ b/node/src/main/kotlin/net/corda/node/internal/djvm/DeterministicVerifier.kt
@@ -9,7 +9,6 @@ import net.corda.core.internal.*
 import net.corda.core.serialization.serialize
 import net.corda.core.transactions.LedgerTransaction
 import net.corda.djvm.SandboxConfiguration
-import net.corda.djvm.analysis.AnalysisConfiguration
 import net.corda.djvm.execution.*
 import net.corda.djvm.messages.Message
 import net.corda.djvm.source.ClassSource
@@ -18,17 +17,11 @@ import net.corda.node.djvm.LtxFactory
 class DeterministicVerifier(
     ltx: LedgerTransaction,
     transactionClassLoader: ClassLoader,
-    private val analysisConfiguration: AnalysisConfiguration
+    private val sandboxConfiguration: SandboxConfiguration
 ) : Verifier(ltx, transactionClassLoader) {
 
     override fun verifyContracts() {
-        val configuration = SandboxConfiguration.createFor(
-            analysisConfiguration = analysisConfiguration,
-            profile = ExecutionProfile.DEFAULT,
-            enableTracing = false
-        )
-
-        val result = IsolatedTask(ltx.id.toString(), configuration).run {
+        val result = IsolatedTask(ltx.id.toString(), sandboxConfiguration).run {
             val taskFactory = classLoader.createRawTaskFactory()
             val sandboxBasicInput = classLoader.createBasicInput()
 
@@ -98,7 +91,6 @@ class DeterministicVerifier(
 
     @Throws(Exception::class)
     override fun close() {
-    //    analysisConfiguration.closeAll()
     }
 }
 
diff --git a/node/src/main/kotlin/net/corda/node/services/transactions/DeterministicVerifierFactoryService.kt b/node/src/main/kotlin/net/corda/node/services/transactions/DeterministicVerifierFactoryService.kt
index eb1471160f..05ff213a23 100644
--- a/node/src/main/kotlin/net/corda/node/services/transactions/DeterministicVerifierFactoryService.kt
+++ b/node/src/main/kotlin/net/corda/node/services/transactions/DeterministicVerifierFactoryService.kt
@@ -7,8 +7,10 @@ import net.corda.core.serialization.CordaSerializable
 import net.corda.core.serialization.DeprecatedConstructorForDeserialization
 import net.corda.core.serialization.SingletonSerializeAsToken
 import net.corda.core.transactions.LedgerTransaction
+import net.corda.djvm.SandboxConfiguration
 import net.corda.djvm.analysis.AnalysisConfiguration
 import net.corda.djvm.analysis.Whitelist
+import net.corda.djvm.execution.ExecutionProfile
 import net.corda.djvm.source.ApiSource
 import net.corda.djvm.source.UserPathSource
 import net.corda.djvm.source.UserSource
@@ -20,15 +22,10 @@ class DeterministicVerifierFactoryService(
     private val bootstrapSource: ApiSource,
     private val cordaSource: UserSource?
 ) : SingletonSerializeAsToken(), AutoCloseable {
+    private val baseSandboxConfiguration: SandboxConfiguration
 
-    fun specialise(ltx: LedgerTransaction, classLoader: ClassLoader): Verifier {
-        return (classLoader as? URLClassLoader)?.run {
-            DeterministicVerifier(ltx, classLoader, createSandbox(classLoader.urLs))
-        } ?: BasicVerifier(ltx, classLoader)
-    }
-
-    private fun createSandbox(userSource: Array<URL>): AnalysisConfiguration {
-        return AnalysisConfiguration.createRoot(
+    init {
+        val baseAnalysisConfiguration = AnalysisConfiguration.createRoot(
             userSource = cordaSource!!,
             whitelist = Whitelist.MINIMAL,
             visibleAnnotations = setOf(
@@ -37,11 +34,23 @@ class DeterministicVerifierFactoryService(
                 DeprecatedConstructorForDeserialization::class.java
             ),
             bootstrapSource = bootstrapSource
-        ).createChild(
-            userSource = UserPathSource(userSource),
-            newMinimumSeverityLevel = null,
-            visibleAnnotations = emptySet()
         )
+
+        baseSandboxConfiguration = SandboxConfiguration.createFor(
+            analysisConfiguration = baseAnalysisConfiguration,
+            profile = ExecutionProfile.DEFAULT,
+            enableTracing = false
+        )
+    }
+
+    fun specialise(ltx: LedgerTransaction, classLoader: ClassLoader): Verifier {
+        return (classLoader as? URLClassLoader)?.run {
+            DeterministicVerifier(ltx, classLoader, createSandbox(classLoader.urLs))
+        } ?: BasicVerifier(ltx, classLoader)
+    }
+
+    private fun createSandbox(userSource: Array<URL>): SandboxConfiguration {
+        return baseSandboxConfiguration.createChild(UserPathSource(userSource))
     }
 
     override fun close() {