diff --git a/roles/matrix-bridge-mautrix-telegram/defaults/main.yml b/roles/matrix-bridge-mautrix-telegram/defaults/main.yml
index 7e7ee0a6..bcdcfdd8 100644
--- a/roles/matrix-bridge-mautrix-telegram/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-telegram/defaults/main.yml
@@ -7,13 +7,13 @@ matrix_telegram_lottieconverter_container_image_self_build: false
 matrix_telegram_lottieconverter_container_image_self_build_mask_arch: false
 matrix_telegram_lottieconverter_docker_repo: "https://mau.dev/tulir/lottieconverter.git"
 matrix_telegram_lottieconverter_docker_src_files_path: "{{ matrix_base_data_path }}/lotticonverter/docker-src"
-matrix_telegram_lottieconverter_docker_image: "dock.mau.dev/tulir/lottieconverter:alpine-3.14" # needs to be ajusted according to FROM clause of Dockerfile of mautrix-telegram
+matrix_telegram_lottieconverter_docker_image: "dock.mau.dev/tulir/lottieconverter:alpine-3.15" # needs to be ajusted according to FROM clause of Dockerfile of mautrix-telegram
 
 matrix_mautrix_telegram_container_image_self_build: false
 matrix_mautrix_telegram_docker_repo: "https://mau.dev/mautrix/telegram.git"
 matrix_mautrix_telegram_docker_src_files_path: "{{ matrix_base_data_path }}/mautrix-telegram/docker-src"
 
-matrix_mautrix_telegram_version: v0.10.2
+matrix_mautrix_telegram_version: v0.11.1
 # See: https://mau.dev/mautrix/telegram/container_registry
 matrix_mautrix_telegram_docker_image: "dock.mau.dev/mautrix/telegram:{{ matrix_mautrix_telegram_version }}"
 matrix_mautrix_telegram_docker_image_force_pull: "{{ matrix_mautrix_telegram_docker_image.endswith(':latest') }}"
diff --git a/roles/matrix-bridge-mautrix-telegram/templates/config.yaml.j2 b/roles/matrix-bridge-mautrix-telegram/templates/config.yaml.j2
index 9492d79e..94694351 100644
--- a/roles/matrix-bridge-mautrix-telegram/templates/config.yaml.j2
+++ b/roles/matrix-bridge-mautrix-telegram/templates/config.yaml.j2
@@ -225,17 +225,6 @@ bridge:
         #      notices from users listed here will be bridged.
         exceptions: []
 
-    # Some config options related to Telegram message deduplication.
-    # The default values are usually fine, but some debug messages/warnings might recommend you
-    # change these.
-    deduplication:
-        # Whether or not to check the database if the message about to be sent is a duplicate.
-        pre_db_check: false
-        # The number of latest events to keep when checking for duplicates.
-        # You might need to increase this on high-traffic bridge instances.
-        cache_queue_length: 20
-
-
     # The formats to use when sending messages to Telegram via the relay bot.
     #
     # Telegram doesn't have built-in emotes, so the m.emote format is also used for non-relaybot users.
diff --git a/roles/matrix-bridge-mautrix-telegram/templates/systemd/matrix-mautrix-telegram.service.j2 b/roles/matrix-bridge-mautrix-telegram/templates/systemd/matrix-mautrix-telegram.service.j2
index 69ab167a..3f5cbd00 100644
--- a/roles/matrix-bridge-mautrix-telegram/templates/systemd/matrix-mautrix-telegram.service.j2
+++ b/roles/matrix-bridge-mautrix-telegram/templates/systemd/matrix-mautrix-telegram.service.j2
@@ -15,15 +15,6 @@ Type=simple
 Environment="HOME={{ matrix_systemd_unit_home_path }}"
 ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-mautrix-telegram 2>/dev/null'
 ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-mautrix-telegram 2>/dev/null'
-ExecStartPre={{ matrix_host_command_docker }} run --rm --name matrix-mautrix-telegram-db \
-			--log-driver=none \
-			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
-			--cap-drop=ALL \
-			--network={{ matrix_docker_network }} \
-			-v {{ matrix_mautrix_telegram_config_path }}:/config:z \
-			-v {{ matrix_mautrix_telegram_data_path }}:/data:z \
-			{{ matrix_mautrix_telegram_docker_image }} \
-			alembic -x config=/config/config.yaml upgrade head
 
 # Intentional delay, so that the homeserver (we likely depend on) can manage to start.
 ExecStartPre={{ matrix_host_command_sleep }} 5