diff --git a/contrib/libpq b/contrib/libpq
index 8e7e9058547..1f9c286dba6 160000
--- a/contrib/libpq
+++ b/contrib/libpq
@@ -1 +1 @@
-Subproject commit 8e7e905854714a7fbb49c124dbc45c7bd4b98e07
+Subproject commit 1f9c286dba60809edb64e384d6727d80d269b6cf
diff --git a/docs/en/development/build-osx.md b/docs/en/development/build-osx.md
index c3a0a540b6d..60365ad744a 100644
--- a/docs/en/development/build-osx.md
+++ b/docs/en/development/build-osx.md
@@ -16,7 +16,7 @@ $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/inst
 ## Install Required Compilers, Tools, and Libraries {#install-required-compilers-tools-and-libraries}
 
 ``` bash
-$ brew install cmake ninja libtool gettext
+$ brew install cmake ninja libtool gettext llvm
 ```
 
 ## Checkout ClickHouse Sources {#checkout-clickhouse-sources}