diff --git a/docker/Dockerfile b/docker/Dockerfile
index fbd75a5..f196218 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -32,18 +32,18 @@ FROM base AS builder-deps
 # Install build dependencies
 RUN apt-get ${APT_OPTS} update && \
     apt-get ${APT_OPTS} install \
-      build-essential \
-      git \
-      procps  \
-      libtiff5-dev \
-      libjpeg62-turbo-dev \
-      zlib1g-dev \
-      libfreetype6-dev \
-      liblcms2-dev \
-      libwebp-dev \
-      tcl8.6-dev \
-      tk8.6-dev \
-      python3-tk
+    build-essential \
+    git \
+    procps  \
+    libtiff5-dev \
+    libjpeg62-turbo-dev \
+    zlib1g-dev \
+    libfreetype6-dev \
+    liblcms2-dev \
+    libwebp-dev \
+    tcl8.6-dev \
+    tk8.6-dev \
+    python3-tk
 
 ################################################################################
 
diff --git a/sources/constants.py b/sources/constants.py
index 1d1ee2a..74db80e 100644
--- a/sources/constants.py
+++ b/sources/constants.py
@@ -180,6 +180,11 @@ CONST = {
         os_getenv("CAPTCHABOT_INIT_LANG", \
             SETTINGS["CAPTCHABOT_INIT_LANG"]),
 
+    # Time to restrict sending no-text messages
+    "T_RESTRICT_NO_TEXT_MSG": \
+        int(os_getenv("CAPTCHABOT_T_RESTRICT_NO_TEXT_MSG", \
+            SETTINGS["CAPTCHABOT_T_RESTRICT_NO_TEXT_MSG"])),
+
     # Number of seconds in a day (60s x 60m x 24h)
     "T_SECONDS_IN_A_DAY": 86400,
 
diff --git a/sources/join_captcha_bot.py b/sources/join_captcha_bot.py
index c674d07..b1b30c7 100644
--- a/sources/join_captcha_bot.py
+++ b/sources/join_captcha_bot.py
@@ -968,7 +968,7 @@ def msg_nocmd(update: Update, context: CallbackContext):
         restrict_non_text_msgs = get_chat_config(chat_id, "Restrict_Non_Text")
         # Restrict for 1 day
         if restrict_non_text_msgs == 1:
-            tomorrow_epoch = get_unix_epoch() + CONST["T_SECONDS_IN_A_DAY"]
+            tomorrow_epoch = get_unix_epoch() + CONST["T_RESTRICT_NO_TEXT_MSG"]
             tlg_restrict_user(bot, chat_id, user_id, send_msg=True, send_media=False,
                 send_stickers_gifs=False, insert_links=False, send_polls=False,
                 invite_members=False, pin_messages=False, change_group_info=False,
@@ -1055,7 +1055,7 @@ def receive_poll_answer(update: Update, context: CallbackContext):
                 printts("[{}] Error: Can't send the welcome message.".format(chat_id))
         # Check for send just text message option and apply user restrictions
         if restrict_non_text_msgs == 1: # Restrict for 1 day
-            tomorrow_epoch = get_unix_epoch() + CONST["T_SECONDS_IN_A_DAY"]
+            tomorrow_epoch = get_unix_epoch() + CONST["T_RESTRICT_NO_TEXT_MSG"]
             tlg_restrict_user(bot, chat_id, user_id, send_msg=True, send_media=False,
                 send_stickers_gifs=False, insert_links=False, send_polls=False,
                 invite_members=False, pin_messages=False, change_group_info=False,
@@ -1242,7 +1242,7 @@ def button_request_pass(bot, query):
     restrict_non_text_msgs = get_chat_config(chat_id, "Restrict_Non_Text")
     # Restrict for 1 day
     if restrict_non_text_msgs == 1:
-        tomorrow_epoch = get_unix_epoch() + CONST["T_SECONDS_IN_A_DAY"]
+        tomorrow_epoch = get_unix_epoch() + CONST["T_RESTRICT_NO_TEXT_MSG"]
         tlg_restrict_user(bot, chat_id, user_id, send_msg=True, send_media=False,
             send_stickers_gifs=False, insert_links=False, send_polls=False,
             invite_members=False, pin_messages=False, change_group_info=False,
diff --git a/sources/settings.py b/sources/settings.py
index 3c2c3b1..5048765 100644
--- a/sources/settings.py
+++ b/sources/settings.py
@@ -93,6 +93,9 @@ SETTINGS = {
     # Auto-remove custom welcome message timeout
     "CAPTCHABOT_T_DEL_WELCOME_MSG": 5,
 
+    # Time to restrict sending no-text messages (in seconds, default 24h)
+    "CAPTCHABOT_T_RESTRICT_NO_TEXT_MSG": 86400,
+
     # Maximum number of users allowed in each chat ignore list
     "CAPTCHABOT_IGNORE_LIST_MAX": 100,