diff --git a/source/display.cpp b/source/display.cpp
index 23a97f0..929d57a 100644
--- a/source/display.cpp
+++ b/source/display.cpp
@@ -274,7 +274,7 @@ EmuDisplay::EmuDisplay(spdlog::logger& logger, vk::PhysicalDevice physical_devic
                                 "\n"
                                 "void main() {\n"
                                 // NOTE: Alpha channel is set to 1.0 here because the Qt frontend requires this for overlay effects (blur, ...) to work
-                                "  out_color = vec4(texture(sampler0, -gl_FragCoord.yx * vec2(" + std::to_string(1.0 / height) + ", " + std::to_string(1.0 / width) + ")).rgb, 1.0);\n"
+                                "  out_color = vec4(texture(sampler0, -gl_FragCoord.yx * vec2(" + fmt::format("{}", 1.0 / height) + ", " + fmt::format("{}", 1.0 / width) + ")).rgb, 1.0);\n"
                                 "}\n";
             auto shader_spv = CompileShader(EShLangFragment, code.c_str(), "main");
 
diff --git a/source/video_core/src/video_core/shader_microcode.cpp b/source/video_core/src/video_core/shader_microcode.cpp
index 257d270..8eec642 100644
--- a/source/video_core/src/video_core/shader_microcode.cpp
+++ b/source/video_core/src/video_core/shader_microcode.cpp
@@ -1485,7 +1485,7 @@ uvec4 i[4];
         glsl += "vec4 non_ieee_mul(vec4 a, vec4 b) { return vec4(non_ieee_mul(a.x, b.x), non_ieee_mul(a.y, b.y), non_ieee_mul(a.z, b.z), non_ieee_mul(a.w, b.w)); } \n\n";
     } else {
         // Fallback: convert INF to FLT32_MAX before multiplication
-        auto max_float = std::to_string(std::numeric_limits<float>::max());
+        auto max_float = fmt::format("{}", std::numeric_limits<float>::max());
         glsl += "float non_ieee_mul(float a, float b) { return min(a, " + max_float + ") * min(b, " + max_float + "); } \n\n";
         glsl += "vec2 non_ieee_mul(vec2 a, vec2 b) { return min(a, vec2(" + max_float + ")) * min(b, vec2(" + max_float + ")); } \n\n";
         glsl += "vec3 non_ieee_mul(vec3 a, vec3 b) { return min(a, vec3(" + max_float + ")) * min(b, vec3(" + max_float + ")); } \n\n";