diff --git a/Telegram/build/docker/centos_env/Dockerfile b/Telegram/build/docker/centos_env/Dockerfile
index 3f04007a22..6337858562 100644
--- a/Telegram/build/docker/centos_env/Dockerfile
+++ b/Telegram/build/docker/centos_env/Dockerfile
@@ -50,14 +50,13 @@ RUN git init patches \
 	&& rm -rf .git
 
 FROM builder AS zlib
-RUN git init zlib \
+RUN git clone -b v1.3.1 --depth=1 {{ GIT }}/madler/zlib.git \
 	&& cd zlib \
-	&& git remote add origin {{ GIT }}/madler/zlib.git \
-	&& git fetch --depth=1 origin 643e17b7498d12ab8d15565662880579692f769d \
-	&& git reset --hard FETCH_HEAD \
-	&& ./configure \
-	&& make -j$(nproc) \
-	&& make DESTDIR="{{ LibrariesPath }}/zlib-cache" install \
+	&& cmake -GNinja -B build . \
+		-DCMAKE_BUILD_TYPE=None \
+		-DZLIB_BUILD_EXAMPLES=OFF \
+	&& cmake --build build --parallel \
+	&& DESTDIR="{{ LibrariesPath }}/zlib-cache" cmake --install build \
 	&& cd .. \
 	&& rm -rf zlib
 
diff --git a/Telegram/build/prepare/prepare.py b/Telegram/build/prepare/prepare.py
index 290b3ae8ae..8098a4f9f4 100644
--- a/Telegram/build/prepare/prepare.py
+++ b/Telegram/build/prepare/prepare.py
@@ -552,16 +552,16 @@ stage('xz', """
 """)
 
 stage('zlib', """
-    git clone https://github.com/madler/zlib.git
+    git clone -b v1.3.1 https://github.com/madler/zlib.git
     cd zlib
-    git checkout 643e17b749
 win:
     cmake . ^
         -A %WIN32X64% ^
         -DCMAKE_MSVC_RUNTIME_LIBRARY="MultiThreaded$<$<CONFIG:Debug>:Debug>" ^
         -DCMAKE_C_FLAGS_DEBUG="/MTd /Zi /Ob0 /Od /RTC1" ^
         -DCMAKE_C_FLAGS_RELEASE="/MT /O2 /Ob2 /DNDEBUG" ^
-        -DCMAKE_C_FLAGS="/DZLIB_WINAPI"
+        -DCMAKE_C_FLAGS="/DZLIB_WINAPI" ^
+        -DZLIB_BUILD_EXAMPLES=OFF
     cmake --build . --config Debug --parallel
 release:
     cmake --build . --config Release --parallel