diff --git a/README.md b/README.md
index eded68c2..f9b0f667 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ You can always use this project in your own code through Maven central, by addin
  <dependency>
    <groupId>org.tokenscript</groupId>
    <artifactId>attestation</artifactId>
-   <version>0.3.14</version>
+   <version>0.3.15</version>
  </dependency>
 ```
 
diff --git a/build.gradle b/build.gradle
index 04b394a2..42e5fcd3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -62,7 +62,7 @@ dependencies {
     implementation group: 'commons-cli', name: 'commons-cli', version: '[1.5.0, 2)'
     implementation group: 'com.google.code.gson', name: 'gson', version: '[2.9.0, 3)'
     testImplementation 'org.mockito:mockito-core:[4.4.0, 5)'
-    implementation 'com.fasterxml.jackson.core:jackson-databind'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:[2.13.2.1,)'
     implementation group: 'org.java-websocket', name: 'Java-WebSocket'
 }
 
@@ -163,7 +163,7 @@ task testJavaScript(type: NodeTask) {
 
 group = "org.tokenscript"
 archivesBaseName = "attestation"
-version = "0.3.14"
+version = "0.3.15"
 
 /** See https://docs.gradle.org/current/userguide/publishing_maven.html for details
  * For actually updating the Maven repo update the version reference in README.md,
diff --git a/devcon.md b/devcon.md
index 4e76c9c0..8a0ec1a6 100644
--- a/devcon.md
+++ b/devcon.md
@@ -63,4 +63,4 @@ The command will print `Ticket is VALID and was issued to email some@mail.dk` if
 
 For example:
 
-    java -cp attestation-0.3.14-all.jar org.devcon.ticket.Validator pub.pem MIGYMA8MATYCBwCMryzpzeQCAQAEQQQtqLOcLgwsajj19K141ER4A4fblUH-cH0ZM_HZQmylYiSxsPljEL--ldyfbPIslT7djTuYJakQdyapeuPpnEDjA0IA1LMfG8yWPpa2Yuyssn5fBB4MsNY3PpF0hwELzugBxw96zU4Q2k9jz5_L3Y3qIyshm8AH5EiIwm5k5LIZs3idghw= MIGqBEEECwGwPNcyCsaGTbr5_BVaThbVuQr7kUWGFI3XgT68kpMi3JGIuO5SCAX4C-ySQxSnQO-9qAZeUjYo7dfnyJiAuwQgLY3YogvmiVW8frt3wxbX9qIBqkgMTcoCdN8af7_QXCEEQQQWPq3mXaFk68AgZgOXq0ORy1XPeTicyazBHv7WGDa_3x-swwhLDW1q8JvvRfbi2t0juMdiEhiG4NgRF-4oOiIOBAA= some@mail.dk
+    java -cp attestation-0.3.15-all.jar org.devcon.ticket.Validator pub.pem MIGYMA8MATYCBwCMryzpzeQCAQAEQQQtqLOcLgwsajj19K141ER4A4fblUH-cH0ZM_HZQmylYiSxsPljEL--ldyfbPIslT7djTuYJakQdyapeuPpnEDjA0IA1LMfG8yWPpa2Yuyssn5fBB4MsNY3PpF0hwELzugBxw96zU4Q2k9jz5_L3Y3qIyshm8AH5EiIwm5k5LIZs3idghw= MIGqBEEECwGwPNcyCsaGTbr5_BVaThbVuQr7kUWGFI3XgT68kpMi3JGIuO5SCAX4C-ySQxSnQO-9qAZeUjYo7dfnyJiAuwQgLY3YogvmiVW8frt3wxbX9qIBqkgMTcoCdN8af7_QXCEEQQQWPq3mXaFk68AgZgOXq0ORy1XPeTicyazBHv7WGDa_3x-swwhLDW1q8JvvRfbi2t0juMdiEhiG4NgRF-4oOiIOBAA= some@mail.dk
diff --git a/src/main/javascript/crypto/src/libs/Attestation.ts b/src/main/javascript/crypto/src/libs/Attestation.ts
index 9df92bc5..5f4b753e 100644
--- a/src/main/javascript/crypto/src/libs/Attestation.ts
+++ b/src/main/javascript/crypto/src/libs/Attestation.ts
@@ -244,13 +244,13 @@ export class Attestation {
 
         if (this.notValidAfter != null && this.notValidBefore != null) {
             let date = Asn1Der.encode('GENERALIZED_TIME', this.notValidBefore);
-            // if (this.blockchainFriendly) {
-            //     date += Asn1Der.encode('INTEGER', this.notValidBefore);
-            // }
+            if (this.blockchainFriendly) {
+                date += Asn1Der.encode('INTEGER', this.notValidBefore);
+            }
             date += Asn1Der.encode('GENERALIZED_TIME', this.notValidAfter);
-            // if (this.blockchainFriendly) {
-            //     date += Asn1Der.encode('INTEGER', this.notValidAfter);
-            // }
+            if (this.blockchainFriendly) {
+                date += Asn1Der.encode('INTEGER', this.notValidAfter);
+            }
             res += Asn1Der.encode('SEQUENCE_30', date);
         } else {
             res += Asn1Der.encode('NULL_VALUE','');