diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d87a23e7..dcaaface 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -42,7 +42,7 @@ and
 [easy](https://github.com/alacritty/alacritty/issues?q=is%3Aopen+is%3Aissue+label%3A%22D+-+easy%22)
 issues.
 
-Please note that the minimum supported version of Alacritty is Rust 1.41.0. All patches are expected
+Please note that the minimum supported version of Alacritty is Rust 1.43.0. All patches are expected
 to work with the minimum supported version.
 
 Since `alacritty_terminal`'s version always tracks the next release, make sure that the version is
diff --git a/extra/linux/redhat/alacritty.spec b/extra/linux/redhat/alacritty.spec
index d064961f..4b907620 100644
--- a/extra/linux/redhat/alacritty.spec
+++ b/extra/linux/redhat/alacritty.spec
@@ -7,14 +7,16 @@ URL:           https://github.com/alacritty/alacritty
 VCS:           https://github.com/alacritty/alacritty.git
 Source:        alacritty-%{version}.tar
 
-BuildRequires: rust >= 1.41.0
+BuildRequires: rust >= 1.43.0
 BuildRequires: cargo
 BuildRequires: cmake
-BuildRequires: freetype-devel
-BuildRequires: fontconfig-devel
-BuildRequires: libxcb-devel
+BuildRequires: gcc-c++
+BuildRequires: python3
+BuildRequires: freetype-devel 
+BuildRequires: fontconfig-devel 
+BuildRequires: libxcb-devel 
 BuildRequires: desktop-file-utils
-BuildRequires: python36
+BuildRequires: ncurses
 
 %description
 Alacritty is a terminal emulator with a strong focus on simplicity and