diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV2.java b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV2.java
index c568c445d..dd46f05b2 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV2.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV2.java
@@ -31,6 +31,8 @@ import org.whispersystems.textsecuregcm.util.Conversions;
 import org.whispersystems.textsecuregcm.util.Pair;
 import org.whispersystems.websocket.auth.ReadOnly;
 
+// To be removed when Android 7.12 reaches saturation, likely some time toward the end of October 2024
+@Deprecated(forRemoval = true)
 @Path("/v2/attachments")
 @Tag(name = "Attachments")
 public class AttachmentControllerV2 {
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV3.java b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV3.java
index 1e70ab4a8..5265444b3 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV3.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentControllerV3.java
@@ -25,6 +25,8 @@ import org.whispersystems.textsecuregcm.limits.RateLimiter;
 import org.whispersystems.textsecuregcm.limits.RateLimiters;
 import org.whispersystems.websocket.auth.ReadOnly;
 
+// To be removed when Desktop 7.17 reaches saturation, likely some time toward the end of October 2024
+@Deprecated(forRemoval = true)
 @Path("/v3/attachments")
 @Tag(name = "Attachments")
 public class AttachmentControllerV3 {