diff --git a/aegisub/configure.in b/aegisub/configure.in
index abd74a0ff..0abdc912d 100644
--- a/aegisub/configure.in
+++ b/aegisub/configure.in
@@ -22,7 +22,7 @@ m4_define([libswscale_required_version], [0.7.1])    # (r18642)
 m4_define([lua_auto4_required_version], [5.1])
 m4_define([portaudio_required_version], [19])
 m4_define([pulseaudio_required_version], [0.5])
-m4_define([curl_required_version], [7.19.2])
+m4_define([curl_required_version], [7.18.2])
 m4_define([fontconfig_required_version], [2.4])
 m4_define([freetype_required_version], [9.7.0])
 m4_define([pkgconfig_required_version], [0.20])