diff --git a/src/chat_gui/send_image_popup.cpp b/src/chat_gui/send_image_popup.cpp
index 555cba1..ced5907 100644
--- a/src/chat_gui/send_image_popup.cpp
+++ b/src/chat_gui/send_image_popup.cpp
@@ -152,7 +152,7 @@ void SendImagePopup::sendMemory(
 
 	// copy paste data to memory
 	original_data.clear();
-	original_data.insert(original_data.begin(), data, data+data_size);
+	original_data.insert(original_data.cend(), data, data+data_size);
 
 	if (!load()) {
 		std::cerr << "SIP: failed to load image from memory\n";
diff --git a/src/image_loader_qoi.cpp b/src/image_loader_qoi.cpp
index bed0fd6..098a3d8 100644
--- a/src/image_loader_qoi.cpp
+++ b/src/image_loader_qoi.cpp
@@ -41,7 +41,7 @@ ImageLoaderQOI::ImageResult ImageLoaderQOI::loadFromMemoryRGBA(const uint8_t* da
 
 	auto& new_frame = res.frames.emplace_back();
 	new_frame.ms = 0;
-	new_frame.data.insert(new_frame.data.cbegin(), img_data, img_data+(desc.width*desc.height*4));
+	new_frame.data.insert(new_frame.data.cend(), img_data, img_data+(desc.width*desc.height*4));
 
 	free(img_data);
 	return res;
diff --git a/src/image_loader_sdl_bmp.cpp b/src/image_loader_sdl_bmp.cpp
index f9f9e56..4845fc5 100644
--- a/src/image_loader_sdl_bmp.cpp
+++ b/src/image_loader_sdl_bmp.cpp
@@ -47,7 +47,7 @@ ImageLoaderSDLBMP::ImageResult ImageLoaderSDLBMP::loadFromMemoryRGBA(const uint8
 
 	auto& new_frame = res.frames.emplace_back();
 	new_frame.ms = 0;
-	new_frame.data.insert(new_frame.data.cbegin(), (const uint8_t*)conv_surf->pixels, ((const uint8_t*)conv_surf->pixels) + (surf->w*surf->h*4));
+	new_frame.data.insert(new_frame.data.cend(), (const uint8_t*)conv_surf->pixels, ((const uint8_t*)conv_surf->pixels) + (surf->w*surf->h*4));
 
 	SDL_UnlockSurface(conv_surf);
 	SDL_DestroySurface(conv_surf);
diff --git a/src/image_loader_sdl_image.cpp b/src/image_loader_sdl_image.cpp
index a1a06d3..a65c7f2 100644
--- a/src/image_loader_sdl_image.cpp
+++ b/src/image_loader_sdl_image.cpp
@@ -99,7 +99,7 @@ ImageLoaderSDLImage::ImageResult ImageLoaderSDLImage::loadFromMemoryRGBA(const u
 
 		auto& new_frame = res.frames.emplace_back();
 		new_frame.ms = anim->delays[i];
-		new_frame.data.insert(new_frame.data.cbegin(), (const uint8_t*)conv_surf->pixels, ((const uint8_t*)conv_surf->pixels) + (anim->w*anim->h*4));
+		new_frame.data.insert(new_frame.data.cend(), (const uint8_t*)conv_surf->pixels, ((const uint8_t*)conv_surf->pixels) + (anim->w*anim->h*4));
 
 		SDL_UnlockSurface(conv_surf);
 		SDL_DestroySurface(conv_surf);
diff --git a/src/image_loader_stb.cpp b/src/image_loader_stb.cpp
index d983f63..a944595 100644
--- a/src/image_loader_stb.cpp
+++ b/src/image_loader_stb.cpp
@@ -41,7 +41,7 @@ ImageLoaderSTB::ImageResult ImageLoaderSTB::loadFromMemoryRGBA(const uint8_t* da
 			for (int i = 0; i < z; i++) {
 				auto& new_frame = res.frames.emplace_back();
 				new_frame.ms = delays[i];
-				new_frame.data.insert(new_frame.data.cbegin(), img_data + (i*stride), img_data + ((i+1)*stride));
+				new_frame.data.insert(new_frame.data.cend(), img_data + (i*stride), img_data + ((i+1)*stride));
 			}
 
 			stbi_image_free(delays); // hope this is right
@@ -62,7 +62,7 @@ ImageLoaderSTB::ImageResult ImageLoaderSTB::loadFromMemoryRGBA(const uint8_t* da
 
 	auto& new_frame = res.frames.emplace_back();
 	new_frame.ms = 0;
-	new_frame.data.insert(new_frame.data.cbegin(), img_data, img_data+(x*y*4));
+	new_frame.data.insert(new_frame.data.cend(), img_data, img_data+(x*y*4));
 
 	stbi_image_free(img_data);
 	return res;
diff --git a/src/image_loader_webp.cpp b/src/image_loader_webp.cpp
index 01cd9fb..eb77503 100644
--- a/src/image_loader_webp.cpp
+++ b/src/image_loader_webp.cpp
@@ -78,7 +78,7 @@ ImageLoaderWebP::ImageResult ImageLoaderWebP::loadFromMemoryRGBA(const uint8_t*
 		auto& new_frame = res.frames.emplace_back();
 		new_frame.ms = timestamp-prev_timestamp;
 		prev_timestamp = timestamp;
-		new_frame.data.insert(new_frame.data.end(), buf, buf+(res.width*res.height*4));
+		new_frame.data.insert(new_frame.data.cend(), buf, buf+(res.width*res.height*4));
 	}
 
 	assert(anim_info.frame_count == res.frames.size());