diff --git a/Dockerfile b/Dockerfile
index 855628e..ab0bbe1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,13 +11,13 @@ RUN apk add --no-cache \
 
 WORKDIR /tmp/_build_tdlib/
 
-RUN git clone https://github.com/tdlib/td.git /tmp/_build_tdlib/
+RUN git clone --depth 1 --branch v1.5.0 https://github.com/tdlib/td.git /tmp/_build_tdlib/
 
 RUN mkdir build
 WORKDIR /tmp/_build_tdlib/build/
 
 RUN cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=/usr/local ..
-RUN make -j13
+RUN make -j9
 RUN cmake --build . --target install
 RUN make install
 
diff --git a/go.mod b/go.mod
index 5a1f756..ac7e0ff 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module git.siteop.biz/chtwrs/gocw
 
-go 1.13
+go 1.16
 
-require github.com/Arman92/go-tdlib v0.0.0-20200423222840-430aa563191c
+require github.com/Arman92/go-tdlib v0.0.0-20191103185020-a66012edd023
diff --git a/go.sum b/go.sum
index 1a8250c..a49b9ee 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,4 @@
-github.com/Arman92/go-tdlib v0.0.0-20200423222840-430aa563191c h1:ZjGWx5+3mK6GYJxPgZWq9+1C11eTW7gdElOL7ZVwHmU=
-github.com/Arman92/go-tdlib v0.0.0-20200423222840-430aa563191c/go.mod h1:ZzkRfuaFj8etIYMj/ECtXtgfz72RE6U+dos27b3XIwk=
+github.com/Arman92/go-tdlib v0.0.0-20191103185020-a66012edd023 h1:haMtq/TntyI3l1I3wF0BrjOJqumTZ+07IAYvNG6utx4=
+github.com/Arman92/go-tdlib v0.0.0-20191103185020-a66012edd023/go.mod h1:ZzkRfuaFj8etIYMj/ECtXtgfz72RE6U+dos27b3XIwk=
+github.com/Arman92/go-tdlib v1.0.0 h1:ioj9TlKXjmVfyc6LwyTb4bje1WhrhCUzlJlmYxow3w8=
+github.com/Arman92/go-tdlib v1.0.0/go.mod h1:gz/NLfLyXSF3LufhmK4a+xcrlIvAUR67zxOWv0JxvsU=