diff --git a/app/docker-compose.yml b/app/docker-compose.yml
index 20cf1ce..ffc5540 100644
--- a/app/docker-compose.yml
+++ b/app/docker-compose.yml
@@ -17,8 +17,11 @@ services:
         # https://github.com/matrix-org/synapse/releases
         VERSION: 1.48.0
         # https://github.com/matrix-org/synapse-s3-storage-provider/commits/main
-        S3_VERSION: 3c3fafd6a2624f05fd396d9e003501bf8bef7b2e
-    image: superboum/amd64_synapse:v48
+        # Update with the latest commit on main each time you update the synapse version
+        # otherwise synapse may fail to launch due to incompatibility issues
+        # see this issue for an example: https://github.com/matrix-org/synapse-s3-storage-provider/issues/64
+        S3_VERSION: f821cff55e35a711b45ecb5165d54a4c28f40c9c
+    image: superboum/amd64_synapse:v49
 
   # Email
   sogo:
diff --git a/app/im/deploy/im.hcl b/app/im/deploy/im.hcl
index 89fba51..dba2447 100644
--- a/app/im/deploy/im.hcl
+++ b/app/im/deploy/im.hcl
@@ -15,7 +15,7 @@ job "im" {
       driver = "docker"
 
       config {
-        image = "superboum/amd64_synapse:v48"
+        image = "superboum/amd64_synapse:v49"
         network_mode = "host"
         readonly_rootfs = true
         ports = [ "client_port", "federation_port" ]
@@ -138,7 +138,7 @@ job "im" {
       driver = "docker"
 
       config {
-        image = "superboum/amd64_synapse:v48"
+        image = "superboum/amd64_synapse:v49"
         readonly_rootfs = true
         command = "/usr/local/bin/matrix-s3-async"
         work_dir = "/tmp"