diff --git a/Telegram/ThirdParty/tgcalls b/Telegram/ThirdParty/tgcalls
index f0fa9b3914..6549849146 160000
--- a/Telegram/ThirdParty/tgcalls
+++ b/Telegram/ThirdParty/tgcalls
@@ -1 +1 @@
-Subproject commit f0fa9b391454622855f5df1332b45a2eec605157
+Subproject commit 65498491465fa64ffdf96a2b7cdeb67bfb697d5b
diff --git a/Telegram/build/docker/build.sh b/Telegram/build/docker/build.sh
index c9415e2f8f..76b0f506a2 100755
--- a/Telegram/build/docker/build.sh
+++ b/Telegram/build/docker/build.sh
@@ -16,7 +16,7 @@ if [ ! -d "$FullScriptPath/../../../../DesktopPrivate" ]; then
 fi
 
 Run () {
-  scl enable devtoolset-8 -- "$@"
+  scl enable devtoolset-9 -- "$@"
 }
 
 HomePath="$FullScriptPath/../.."
diff --git a/Telegram/build/docker/centos_env/Dockerfile b/Telegram/build/docker/centos_env/Dockerfile
index b9e43e0ec6..49ca6cf62f 100644
--- a/Telegram/build/docker/centos_env/Dockerfile
+++ b/Telegram/build/docker/centos_env/Dockerfile
@@ -19,10 +19,10 @@ RUN yum -y install git cmake3 meson ninja-build autoconf automake libtool \
 	freetype-devel libX11-devel at-spi2-core-devel alsa-lib-devel \
 	pulseaudio-libs-devel mesa-libGL-devel mesa-libEGL-devel \
 	webkitgtk4-devel pkgconfig bison yasm file which xorg-x11-util-macros \
-	devtoolset-8-make devtoolset-8-gcc devtoolset-8-gcc-c++ \
-	devtoolset-8-binutils
+	devtoolset-9-make devtoolset-9-gcc devtoolset-9-gcc-c++ \
+	devtoolset-9-binutils
 
-SHELL [ "scl", "enable", "devtoolset-8", "--", "bash", "-c" ]
+SHELL [ "scl", "enable", "devtoolset-9", "--", "bash", "-c" ]
 RUN ln -s cmake3 /usr/bin/cmake
 
 ENV LibrariesPath /usr/src/Libraries
@@ -597,7 +597,7 @@ RUN git checkout bc8fb886
 RUN git clone https://chromium.googlesource.com/linux-syscall-support.git src/third_party/lss
 
 WORKDIR src/third_party/lss
-RUN git checkout a91633d1
+RUN git checkout 8048ece
 WORKDIR ${LibrariesPath}
 
 ENV BreakpadCache ${LibrariesPath}/breakpad-cache
diff --git a/Telegram/build/docker/centos_env/build.sh b/Telegram/build/docker/centos_env/build.sh
index 9bac991f4a..c965b47d28 100755
--- a/Telegram/build/docker/centos_env/build.sh
+++ b/Telegram/build/docker/centos_env/build.sh
@@ -1,10 +1,10 @@
 #!/bin/bash
 
 cd Telegram
-scl enable devtoolset-8 -- ./configure.sh "$@"
+scl enable devtoolset-9 -- ./configure.sh "$@"
 
 if [ -n "$DEBUG" ]; then
-	scl enable devtoolset-8 -- cmake3 --build ../out/Debug -j$(nproc)
+	scl enable devtoolset-9 -- cmake3 --build ../out/Debug -j$(nproc)
 else
-	scl enable devtoolset-8 -- cmake3 --build ../out/Release -j$(nproc)
+	scl enable devtoolset-9 -- cmake3 --build ../out/Release -j$(nproc)
 fi
diff --git a/Telegram/build/docker/centos_env/run.sh b/Telegram/build/docker/centos_env/run.sh
index 6a085b3ea9..22d050bb93 100755
--- a/Telegram/build/docker/centos_env/run.sh
+++ b/Telegram/build/docker/centos_env/run.sh
@@ -15,7 +15,7 @@ fi
 
 Command="$1"
 if [ "$Command" == "" ]; then
-  Command="scl enable devtoolset-8 -- bash"
+  Command="scl enable devtoolset-9 -- bash"
 fi
 
 docker run -it --rm --cpus=8 --memory=22g -v $HOME/Telegram/DesktopPrivate:/usr/src/DesktopPrivate -v $HOME/Telegram/tdesktop:/usr/src/tdesktop tdesktop:centos_env $Command