diff --git a/cortex.spec b/cortex.spec
index 10af6bd..ab58eef 100644
--- a/cortex.spec
+++ b/cortex.spec
@@ -13,6 +13,10 @@ ExclusiveArch:  x86_64
 BuildRequires:  rust >= 1.85
 BuildRequires:  cargo
 BuildRequires:  gcc
+BuildRequires:  gcc-c++
+BuildRequires:  cmake
+BuildRequires:  perl-interpreter
+BuildRequires:  pkgconfig(openssl)
 BuildRequires:  systemd-rpm-macros
 
 Requires(pre):  shadow-utils
diff --git a/neuron.spec b/neuron.spec
index 8e96714..f1c7bd1 100644
--- a/neuron.spec
+++ b/neuron.spec
@@ -13,6 +13,10 @@ ExclusiveArch:  x86_64
 BuildRequires:  rust >= 1.85
 BuildRequires:  cargo
 BuildRequires:  gcc
+BuildRequires:  gcc-c++
+BuildRequires:  cmake
+BuildRequires:  perl-interpreter
+BuildRequires:  pkgconfig(openssl)
 BuildRequires:  systemd-rpm-macros
 
 Requires(pre):  shadow-utils