diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/build.gradle.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/build.gradle.mustache
index be194ab23c4c..c3355f8f7331 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/build.gradle.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/build.gradle.mustache
@@ -135,14 +135,14 @@ ext {
     jakarta_annotation_version = "2.1.1"
     beanvalidation_version = "3.0.2"
     reactor_version = "3.5.12"
-    reactor_netty_version = "1.1.13"
+    reactor_netty_version = "1.2.8"
     {{/useJakartaEe}}
     {{^useJakartaEe}}
     spring_boot_version = "2.7.17"
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     reactor_version = "3.4.34"
-    reactor_netty_version = "1.0.39"
+    reactor_netty_version = "1.2.8"
     {{/useJakartaEe}}
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache
index 4180b2d5f517..fc2164d9cfb9 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache
@@ -176,13 +176,13 @@
         <spring-boot-version>3.0.12</spring-boot-version>
         <jakarta-annotation-version>2.1.1</jakarta-annotation-version>
         <reactor-version>3.5.12</reactor-version>
-        <reactor-netty-version>1.1.13</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         {{/useJakartaEe}}
         {{^useJakartaEe}}
         <spring-boot-version>2.7.17</spring-boot-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <reactor-version>3.4.34</reactor-version>
-        <reactor-netty-version>1.0.39</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         {{/useJakartaEe}}
         <junit-version>5.10.2</junit-version>
         {{#joda}}
diff --git a/samples/client/others/java/webclient-useAbstractionForFiles/build.gradle b/samples/client/others/java/webclient-useAbstractionForFiles/build.gradle
index 5e9586e15476..b8d4364c20d8 100644
--- a/samples/client/others/java/webclient-useAbstractionForFiles/build.gradle
+++ b/samples/client/others/java/webclient-useAbstractionForFiles/build.gradle
@@ -116,7 +116,7 @@ ext {
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     reactor_version = "3.4.34"
-    reactor_netty_version = "1.0.39"
+    reactor_netty_version = "1.2.8"
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
diff --git a/samples/client/others/java/webclient-useAbstractionForFiles/pom.xml b/samples/client/others/java/webclient-useAbstractionForFiles/pom.xml
index 2c86f52c45cf..52bf250cc046 100644
--- a/samples/client/others/java/webclient-useAbstractionForFiles/pom.xml
+++ b/samples/client/others/java/webclient-useAbstractionForFiles/pom.xml
@@ -126,7 +126,7 @@
         <spring-boot-version>2.7.17</spring-boot-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <reactor-version>3.4.34</reactor-version>
-        <reactor-netty-version>1.0.39</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         <junit-version>5.10.2</junit-version>
     </properties>
 </project>
diff --git a/samples/client/petstore/java/webclient-jakarta/build.gradle b/samples/client/petstore/java/webclient-jakarta/build.gradle
index e64b0c5445d8..ccbb06ef11d0 100644
--- a/samples/client/petstore/java/webclient-jakarta/build.gradle
+++ b/samples/client/petstore/java/webclient-jakarta/build.gradle
@@ -116,7 +116,7 @@ ext {
     jakarta_annotation_version = "2.1.1"
     beanvalidation_version = "3.0.2"
     reactor_version = "3.5.12"
-    reactor_netty_version = "1.1.13"
+    reactor_netty_version = "1.2.8"
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
diff --git a/samples/client/petstore/java/webclient-jakarta/pom.xml b/samples/client/petstore/java/webclient-jakarta/pom.xml
index 7935ddb648ca..d1d0f939590d 100644
--- a/samples/client/petstore/java/webclient-jakarta/pom.xml
+++ b/samples/client/petstore/java/webclient-jakarta/pom.xml
@@ -126,7 +126,7 @@
         <spring-boot-version>3.0.12</spring-boot-version>
         <jakarta-annotation-version>2.1.1</jakarta-annotation-version>
         <reactor-version>3.5.12</reactor-version>
-        <reactor-netty-version>1.1.13</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         <junit-version>5.10.2</junit-version>
     </properties>
 </project>
diff --git a/samples/client/petstore/java/webclient-nullable-arrays/build.gradle b/samples/client/petstore/java/webclient-nullable-arrays/build.gradle
index 6d04524a96d9..413096ba8baa 100644
--- a/samples/client/petstore/java/webclient-nullable-arrays/build.gradle
+++ b/samples/client/petstore/java/webclient-nullable-arrays/build.gradle
@@ -116,7 +116,7 @@ ext {
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     reactor_version = "3.4.34"
-    reactor_netty_version = "1.0.39"
+    reactor_netty_version = "1.2.8"
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
diff --git a/samples/client/petstore/java/webclient-nullable-arrays/pom.xml b/samples/client/petstore/java/webclient-nullable-arrays/pom.xml
index 387c8458bfbb..4d1fd51d1260 100644
--- a/samples/client/petstore/java/webclient-nullable-arrays/pom.xml
+++ b/samples/client/petstore/java/webclient-nullable-arrays/pom.xml
@@ -126,7 +126,7 @@
         <spring-boot-version>2.7.17</spring-boot-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <reactor-version>3.4.34</reactor-version>
-        <reactor-netty-version>1.0.39</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         <junit-version>5.10.2</junit-version>
     </properties>
 </project>
diff --git a/samples/client/petstore/java/webclient-swagger2/build.gradle b/samples/client/petstore/java/webclient-swagger2/build.gradle
index e643eadeb709..834ec14cc130 100644
--- a/samples/client/petstore/java/webclient-swagger2/build.gradle
+++ b/samples/client/petstore/java/webclient-swagger2/build.gradle
@@ -117,7 +117,7 @@ ext {
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     reactor_version = "3.4.34"
-    reactor_netty_version = "1.0.39"
+    reactor_netty_version = "1.2.8"
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
diff --git a/samples/client/petstore/java/webclient-swagger2/pom.xml b/samples/client/petstore/java/webclient-swagger2/pom.xml
index ca3052ed600d..9666306765f6 100644
--- a/samples/client/petstore/java/webclient-swagger2/pom.xml
+++ b/samples/client/petstore/java/webclient-swagger2/pom.xml
@@ -132,7 +132,7 @@
         <spring-boot-version>2.7.17</spring-boot-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <reactor-version>3.4.34</reactor-version>
-        <reactor-netty-version>1.0.39</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         <junit-version>5.10.2</junit-version>
     </properties>
 </project>
diff --git a/samples/client/petstore/java/webclient-useSingleRequestParameter/build.gradle b/samples/client/petstore/java/webclient-useSingleRequestParameter/build.gradle
index ba59cff6ba8b..28c693666ba4 100644
--- a/samples/client/petstore/java/webclient-useSingleRequestParameter/build.gradle
+++ b/samples/client/petstore/java/webclient-useSingleRequestParameter/build.gradle
@@ -116,7 +116,7 @@ ext {
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     reactor_version = "3.4.34"
-    reactor_netty_version = "1.0.39"
+    reactor_netty_version = "1.2.8"
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
diff --git a/samples/client/petstore/java/webclient-useSingleRequestParameter/pom.xml b/samples/client/petstore/java/webclient-useSingleRequestParameter/pom.xml
index 01e8c956f399..784dde9aeab7 100644
--- a/samples/client/petstore/java/webclient-useSingleRequestParameter/pom.xml
+++ b/samples/client/petstore/java/webclient-useSingleRequestParameter/pom.xml
@@ -126,7 +126,7 @@
         <spring-boot-version>2.7.17</spring-boot-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <reactor-version>3.4.34</reactor-version>
-        <reactor-netty-version>1.0.39</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         <junit-version>5.10.2</junit-version>
     </properties>
 </project>
diff --git a/samples/client/petstore/java/webclient/build.gradle b/samples/client/petstore/java/webclient/build.gradle
index fb2dce8df131..b6b18910cd4f 100644
--- a/samples/client/petstore/java/webclient/build.gradle
+++ b/samples/client/petstore/java/webclient/build.gradle
@@ -116,7 +116,7 @@ ext {
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     reactor_version = "3.4.34"
-    reactor_netty_version = "1.0.39"
+    reactor_netty_version = "1.2.8"
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
diff --git a/samples/client/petstore/java/webclient/pom.xml b/samples/client/petstore/java/webclient/pom.xml
index 12be22abc83b..eca8f9853bce 100644
--- a/samples/client/petstore/java/webclient/pom.xml
+++ b/samples/client/petstore/java/webclient/pom.xml
@@ -126,7 +126,7 @@
         <spring-boot-version>2.7.17</spring-boot-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <reactor-version>3.4.34</reactor-version>
-        <reactor-netty-version>1.0.39</reactor-netty-version>
+        <reactor-netty-version>1.2.8</reactor-netty-version>
         <junit-version>5.10.2</junit-version>
     </properties>
 </project>