diff --git a/Dockerfile b/Dockerfile
index d82b428b..a1a71156 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,18 +15,23 @@ RUN apk add --no-cache \
       py3-sqlalchemy \
       py3-markdown \
       py3-psycopg2 \
+      # Not yet in stable repos:
+      #py3-ruamel \
       # Indirect dependencies
-      py3-numpy \
-      py3-asn1crypto \
-      py3-future \
-      py3-markupsafe \
-      py3-mako \
-      py3-decorator \
-      py3-dateutil \
-      py3-idna \
-      py3-six \
-      py3-asn1 \
-      py3-rsa \
+      #commonmark
+        py3-future \
+      #alembic
+        py3-mako \
+        py3-dateutil \
+        py3-markupsafe \
+      #moviepy
+        py3-decorator \
+        #py3-tqdm \
+        py3-requests \
+        #imageio
+          py3-numpy \
+      #telethon
+        py3-rsa \
       # Other dependencies
       python3-dev \
       build-base \
diff --git a/setup.py b/setup.py
index aa4e9fcc..4a520108 100644
--- a/setup.py
+++ b/setup.py
@@ -39,7 +39,7 @@ setuptools.setup(
         "future-fstrings>=0.4.2",
         "python-magic>=0.4.15,<0.5",
         "telethon>=1.5.5,<1.7",
-        "telethon-session-sqlalchemy>=0.2.11,<0.3",
+        "telethon-session-sqlalchemy>=0.2.12,<0.3",
     ],
     extras_require=extras,