diff --git a/changelog/unreleased/pr-21579.toml b/changelog/unreleased/pr-21579.toml
new file mode 100644
index 000000000000..950b575cc407
--- /dev/null
+++ b/changelog/unreleased/pr-21579.toml
@@ -0,0 +1,4 @@
+type = "d"
+message = "Deprecated Palo Alto Networks version 8.x and 9.x inputs"
+
+pulls = ["21579"]
diff --git a/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto/PaloAltoTCPInput.java b/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto/PaloAltoTCPInput.java
index c5e265fab4d0..c028a5d43a1e 100644
--- a/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto/PaloAltoTCPInput.java
+++ b/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto/PaloAltoTCPInput.java
@@ -38,7 +38,7 @@
 
 public class PaloAltoTCPInput extends MessageInput {
 
-    public static final String NAME = "Palo Alto Networks TCP (PAN-OS v8.x)";
+    public static final String NAME = "Palo Alto Networks TCP v8.x (deprecated)";
 
     private static final Logger LOG = LoggerFactory.getLogger(PaloAltoTCPInput.class);
 
diff --git a/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto9/PaloAlto9xInput.java b/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto9/PaloAlto9xInput.java
index 6601cab949fa..0cb23f366c54 100644
--- a/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto9/PaloAlto9xInput.java
+++ b/graylog2-server/src/main/java/org/graylog/integrations/inputs/paloalto9/PaloAlto9xInput.java
@@ -35,7 +35,7 @@
 public class PaloAlto9xInput extends MessageInput {
     private static final Logger LOG = LoggerFactory.getLogger(PaloAlto9xInput.class);
 
-    public static final String NAME = "Palo Alto Networks TCP (PAN-OS v9+)";
+    public static final String NAME = "Palo Alto Networks TCP v9.x (deprecated)";
 
     @Inject
     public PaloAlto9xInput(@Assisted Configuration configuration,