diff --git a/src/c/breseq/libbreseq/json.hpp b/src/c/breseq/libbreseq/json.hpp
index a39dc5af..d6aaa5e5 100644
--- a/src/c/breseq/libbreseq/json.hpp
+++ b/src/c/breseq/libbreseq/json.hpp
@@ -57,17 +57,6 @@ SOFTWARE.
 #include <utility> // declval, forward, make_pair, move, pair, swap
 #include <vector> // vector
 
-// exclude unsupported compilers
-#if defined(__clang__)
-    #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400
-        #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
-    #endif
-#elif defined(__GNUC__)
-    #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40900
-        #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
-    #endif
-#endif
-
 // disable float-equal warnings on GCC/clang
 #if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
     #pragma GCC diagnostic push
