diff --git a/build.gradle b/build.gradle
index cdb1751bbe..3ac9411c1c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -61,8 +61,9 @@ buildscript {
 
     ext.asm_version = '7.1'
     ext.artemis_version = '2.6.2'
-    // TODO Upgrade Jackson only when corda is using kotlin 1.3.10
-    ext.jackson_version = '2.9.7'
+    // TODO Upgrade to Jackson 2.10+ only when corda is using kotlin 1.3.10
+    ext.jackson_version = '2.13.5'
+    ext.jackson_kotlin_version = '2.9.7'
     ext.jetty_version = '9.4.19.v20190610'
     ext.jersey_version = '2.25'
     ext.servlet_version = '4.0.1'
@@ -105,9 +106,9 @@ buildscript {
     ext.dependency_checker_version = '5.2.0'
     ext.commons_collections_version = '4.3'
     ext.beanutils_version = '1.9.4'
-    ext.crash_version = '1.7.4'
+    ext.crash_version = '1.7.6'
     ext.jsr305_version = constants.getProperty("jsr305Version")
-    ext.shiro_version = '1.4.1'
+    ext.shiro_version = '1.10.0'
     ext.artifactory_plugin_version = constants.getProperty('artifactoryPluginVersion')
     ext.hikari_version = '3.3.1'
     ext.liquibase_version = '3.6.3'
@@ -445,6 +446,10 @@ allprojects {
                             details.useVersion netty_version
                         }
                     }
+
+                    if (details.requested.group == 'org.yaml' && details.requested.name == 'snakeyaml') {
+                        details.useVersion snake_yaml_version
+                    }
                 }
             }
         }
diff --git a/client/jackson/build.gradle b/client/jackson/build.gradle
index e586479b80..b86798a8b3 100644
--- a/client/jackson/build.gradle
+++ b/client/jackson/build.gradle
@@ -9,7 +9,9 @@ dependencies {
 
     compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     // Jackson and its plugins: parsing to/from JSON and other textual formats.
-    compile "com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_version"
+    compile("com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_kotlin_version") {
+        exclude module: "jackson-databind"
+    }
     // Yaml is useful for parsing strings to method calls.
     compile "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:$jackson_version"
     // This adds support for java.time types.
diff --git a/client/jackson/src/main/kotlin/net/corda/client/jackson/JacksonSupport.kt b/client/jackson/src/main/kotlin/net/corda/client/jackson/JacksonSupport.kt
index 5cd84f1ad0..ac8c23a2e9 100644
--- a/client/jackson/src/main/kotlin/net/corda/client/jackson/JacksonSupport.kt
+++ b/client/jackson/src/main/kotlin/net/corda/client/jackson/JacksonSupport.kt
@@ -6,6 +6,7 @@ import com.fasterxml.jackson.core.*
 import com.fasterxml.jackson.databind.*
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize
 import com.fasterxml.jackson.databind.annotation.JsonSerialize
+import com.fasterxml.jackson.databind.cfg.ConstructorDetector
 import com.fasterxml.jackson.databind.deser.BeanDeserializerModifier
 import com.fasterxml.jackson.databind.deser.std.NumberDeserializers
 import com.fasterxml.jackson.databind.node.ObjectNode
@@ -179,6 +180,8 @@ object JacksonSupport {
             addMixIn(X500Principal::class.java, X500PrincipalMixin::class.java)
             addMixIn(X509Certificate::class.java, X509CertificateMixin::class.java)
             addMixIn(CertPath::class.java, CertPathMixin::class.java)
+
+            setConstructorDetector(ConstructorDetector.DEFAULT.withAllowJDKTypeConstructors(true))
         }
     }
 
diff --git a/client/jackson/src/main/kotlin/net/corda/client/jackson/internal/CordaModule.kt b/client/jackson/src/main/kotlin/net/corda/client/jackson/internal/CordaModule.kt
index 2adbccc93f..758f4e6a6d 100644
--- a/client/jackson/src/main/kotlin/net/corda/client/jackson/internal/CordaModule.kt
+++ b/client/jackson/src/main/kotlin/net/corda/client/jackson/internal/CordaModule.kt
@@ -19,6 +19,7 @@ import com.fasterxml.jackson.databind.deser.BeanDeserializerModifier
 import com.fasterxml.jackson.databind.deser.ContextualDeserializer
 import com.fasterxml.jackson.databind.deser.std.DelegatingDeserializer
 import com.fasterxml.jackson.databind.deser.std.FromStringDeserializer
+import com.fasterxml.jackson.databind.introspect.AccessorNamingStrategy
 import com.fasterxml.jackson.databind.introspect.AnnotatedClass
 import com.fasterxml.jackson.databind.introspect.BasicClassIntrospector
 import com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector
@@ -114,6 +115,14 @@ private class CordaSerializableClassIntrospector(private val context: Module.Set
         }
         return super.constructPropertyCollector(config, ac, type, forSerialization, mutatorPrefix)
     }
+
+    override fun constructPropertyCollector(config: MapperConfig<*>?, classDef: AnnotatedClass?, type: JavaType, forSerialization: Boolean, accNaming: AccessorNamingStrategy?): POJOPropertiesCollector {
+        if (hasCordaSerializable(type.rawClass)) {
+            // Adjust the field visibility of CordaSerializable classes on the fly as they are encountered.
+            context.configOverride(type.rawClass).visibility = Value.defaultVisibility().withFieldVisibility(Visibility.ANY)
+        }
+        return super.constructPropertyCollector(config, classDef, type, forSerialization, accNaming)
+    }
 }
 
 private class CordaSerializableBeanSerializerModifier : BeanSerializerModifier() {
diff --git a/constants.properties b/constants.properties
index e837085ac1..ac60ab4fa6 100644
--- a/constants.properties
+++ b/constants.properties
@@ -25,7 +25,7 @@ disruptorVersion=3.4.2
 typesafeConfigVersion=1.3.4
 jsr305Version=3.0.2
 artifactoryPluginVersion=4.16.1
-snakeYamlVersion=1.19
+snakeYamlVersion=1.33
 caffeineVersion=2.7.0
 metricsVersion=4.1.0
 metricsNewRelicVersion=1.1.1
diff --git a/node/src/main/kotlin/net/corda/node/services/rpc/CheckpointDumperImpl.kt b/node/src/main/kotlin/net/corda/node/services/rpc/CheckpointDumperImpl.kt
index 92b8771d91..c245df592b 100644
--- a/node/src/main/kotlin/net/corda/node/services/rpc/CheckpointDumperImpl.kt
+++ b/node/src/main/kotlin/net/corda/node/services/rpc/CheckpointDumperImpl.kt
@@ -454,7 +454,7 @@ class CheckpointDumperImpl(private val checkpointStorage: CheckpointStorage, pri
 
     private object MapSerializer : JsonSerializer<Map<Any, Any>>() {
         override fun serialize(map: Map<Any, Any>, gen: JsonGenerator, serializers: SerializerProvider) {
-            gen.writeStartArray(map.size)
+            gen.writeStartArray()
             map.forEach { (key, value) ->
                 gen.jsonObject {
                     writeObjectField("key", key)
diff --git a/samples/irs-demo/cordapp/workflows-irs/build.gradle b/samples/irs-demo/cordapp/workflows-irs/build.gradle
index ce09b2a803..ff88428b24 100644
--- a/samples/irs-demo/cordapp/workflows-irs/build.gradle
+++ b/samples/irs-demo/cordapp/workflows-irs/build.gradle
@@ -16,7 +16,7 @@ dependencies {
     cordaCompile project(':core')
     
 
-    compile("com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_version")
+    compile("com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_kotlin_version")
     
     // only included to control the `DemoClock` as part of the demo application
     // normally `:node` should not be depended on in any CorDapps
diff --git a/samples/irs-demo/web/build.gradle b/samples/irs-demo/web/build.gradle
index 8064af4347..b887d036cb 100644
--- a/samples/irs-demo/web/build.gradle
+++ b/samples/irs-demo/web/build.gradle
@@ -70,7 +70,7 @@ dependencies {
     }
     compile('org.springframework.boot:spring-boot-starter-log4j2')
     runtimeOnly("org.apache.logging.log4j:log4j-web:$log4j_version")
-    compile("com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_version")
+    compile("com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_kotlin_version")
     compile project(":client:rpc")
     compile project(":client:jackson")
     compile project(":finance:workflows")
diff --git a/settings.gradle b/settings.gradle
index 858ffcb7fe..d896cc16d5 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -82,10 +82,10 @@ include 'tools:checkpoint-agent'
 include 'samples:attachment-demo:contracts'
 include 'samples:attachment-demo:workflows'
 include 'samples:trader-demo:workflows-trader'
-include 'samples:irs-demo'
-include 'samples:irs-demo:cordapp:contracts-irs'
-include 'samples:irs-demo:cordapp:workflows-irs'
-include 'samples:irs-demo:web'
+// include 'samples:irs-demo'
+// include 'samples:irs-demo:cordapp:contracts-irs'
+// include 'samples:irs-demo:cordapp:workflows-irs'
+// include 'samples:irs-demo:web'
 include 'samples:simm-valuation-demo'
 include 'samples:simm-valuation-demo:flows'
 include 'samples:simm-valuation-demo:contracts-states'
diff --git a/testing/test-cli/build.gradle b/testing/test-cli/build.gradle
index a668c605f4..d4de7deba0 100644
--- a/testing/test-cli/build.gradle
+++ b/testing/test-cli/build.gradle
@@ -6,7 +6,7 @@ dependencies {
     compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
     compile "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:$jackson_version"
     compile "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
-    compile "com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_version"
+    compile "com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_kotlin_version"
     
     compile "org.junit.jupiter:junit-jupiter-api:${junit_jupiter_version}"
     compile "junit:junit:${junit_version}"
diff --git a/tools/network-builder/build.gradle b/tools/network-builder/build.gradle
index 01c65cdcd4..b80895a7a4 100644
--- a/tools/network-builder/build.gradle
+++ b/tools/network-builder/build.gradle
@@ -52,7 +52,7 @@ dependencies {
     compile "com.typesafe:config:$typesafe_config_version"
     compile "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:$jackson_version"
     compile "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
-    compile "com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_version"
+    compile "com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_kotlin_version"
     compile "info.picocli:picocli:$picocli_version"
 
     // TornadoFX: A lightweight Kotlin framework for working with JavaFX UI's.