diff --git a/examples/fabric-contract-example-as-service/build.gradle b/examples/fabric-contract-example-as-service/build.gradle
index 24d5eb81..072ec540 100644
--- a/examples/fabric-contract-example-as-service/build.gradle
+++ b/examples/fabric-contract-example-as-service/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '9.0.0'
+    id 'com.gradleup.shadow' version '9.1.0'
     id 'java'
 }
 
@@ -25,6 +25,7 @@ shadowJar {
     archiveBaseName = 'chaincode'
     archiveVersion = ''
     archiveClassifier = ''
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
     mergeServiceFiles()
 
     manifest {
diff --git a/examples/fabric-contract-example-gradle-kotlin/build.gradle.kts b/examples/fabric-contract-example-gradle-kotlin/build.gradle.kts
index c549dd66..572156e5 100644
--- a/examples/fabric-contract-example-gradle-kotlin/build.gradle.kts
+++ b/examples/fabric-contract-example-gradle-kotlin/build.gradle.kts
@@ -5,7 +5,7 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 
 
 plugins {
-    id("com.gradleup.shadow") version "9.0.0"
+    id("com.gradleup.shadow") version "9.1.0"
     id("org.jetbrains.kotlin.jvm") version "2.2.0"
 }
 
@@ -34,6 +34,7 @@ tasks {
         archiveBaseName = "chaincode"
         archiveVersion = ""
         archiveClassifier = ""
+        duplicatesStrategy = DuplicatesStrategy.INCLUDE
         mergeServiceFiles()
         manifest {
             attributes(mapOf("Main-Class" to "org.hyperledger.fabric.contract.ContractRouter"))
diff --git a/examples/fabric-contract-example-gradle/build.gradle b/examples/fabric-contract-example-gradle/build.gradle
index 1a8b41c1..64736e46 100644
--- a/examples/fabric-contract-example-gradle/build.gradle
+++ b/examples/fabric-contract-example-gradle/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '9.0.0'
+    id 'com.gradleup.shadow' version '9.1.0'
     id 'java'
 }
 
@@ -24,6 +24,7 @@ shadowJar {
     archiveBaseName = 'chaincode'
     archiveVersion = ''
     archiveClassifier = ''
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
     mergeServiceFiles()
 
     manifest {
diff --git a/examples/ledger-api/build.gradle b/examples/ledger-api/build.gradle
index 38db2cc3..4487618a 100644
--- a/examples/ledger-api/build.gradle
+++ b/examples/ledger-api/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '9.0.0'
+    id 'com.gradleup.shadow' version '9.1.0'
     id 'java'
 }
 
@@ -24,6 +24,7 @@ shadowJar {
     archiveBaseName = 'chaincode'
     archiveVersion = ''
     archiveClassifier = ''
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
     mergeServiceFiles()
 
     manifest {
diff --git a/fabric-chaincode-integration-test/src/contracts/bare-gradle/build.gradle b/fabric-chaincode-integration-test/src/contracts/bare-gradle/build.gradle
index a4586895..17d13b56 100644
--- a/fabric-chaincode-integration-test/src/contracts/bare-gradle/build.gradle
+++ b/fabric-chaincode-integration-test/src/contracts/bare-gradle/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '9.0.0'
+    id 'com.gradleup.shadow' version '9.1.0'
     id 'java'
 }
 
@@ -26,6 +26,7 @@ shadowJar {
     archiveBaseName = 'chaincode'
     archiveVersion = ''
     archiveClassifier = ''
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
     mergeServiceFiles()
 
     manifest {
diff --git a/fabric-chaincode-integration-test/src/contracts/fabric-ledger-api/build.gradle b/fabric-chaincode-integration-test/src/contracts/fabric-ledger-api/build.gradle
index 7c974b86..051f2401 100644
--- a/fabric-chaincode-integration-test/src/contracts/fabric-ledger-api/build.gradle
+++ b/fabric-chaincode-integration-test/src/contracts/fabric-ledger-api/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '9.0.0'
+    id 'com.gradleup.shadow' version '9.1.0'
     id 'java'
 }
 
@@ -26,6 +26,7 @@ shadowJar {
     archiveBaseName = 'chaincode'
     archiveVersion = ''
     archiveClassifier = ''
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
     mergeServiceFiles()
 
     manifest {
diff --git a/fabric-chaincode-integration-test/src/contracts/fabric-shim-api/build.gradle b/fabric-chaincode-integration-test/src/contracts/fabric-shim-api/build.gradle
index 00910f5f..aaafd27b 100644
--- a/fabric-chaincode-integration-test/src/contracts/fabric-shim-api/build.gradle
+++ b/fabric-chaincode-integration-test/src/contracts/fabric-shim-api/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '9.0.0'
+    id 'com.gradleup.shadow' version '9.1.0'
     id 'java'
 }
 
@@ -28,6 +28,7 @@ shadowJar {
     archiveBaseName = 'chaincode'
     archiveVersion = ''
     archiveClassifier = ''
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
     mergeServiceFiles()
 
     manifest {