cmark

diff --git a/Makefile b/Makefile
@@ -106,9 +106,8 @@ $(SRCDIR)/case_fold_switch.inc: $(DATADIR)/CaseFolding-3.2.0.txt
 # normally need to be generated.
 $(SRCDIR)/scanners.c: $(SRCDIR)/scanners.re
 	@case "$$(re2c -v)" in \
-	    *\ 0.13.7*|*\ 0.14|*\ 0.14.1) \
-		echo "re2c versions 0.13.7 through 0.14.1 are known to produce buggy code."; \
-		echo "Try a version >= 0.14.2 or <= 0.13.6."; \
+	    *\ 0.13.*|*\ 0.14|*\ 0.14.1) \
+		echo "re2c >= 0.14.2 is required"; \
 		false; \
 		;; \
 	esac

diff --git a/README.md b/README.md
@@ -65,7 +65,7 @@ Installing
 
 Building the C program (`cmark`) and shared library (`libcmark`)
 requires [cmake].  If you modify `scanners.re`, then you will also
-need [re2c], which is used to generate `scanners.c` from
+need [re2c] (>= 1.14.2), which is used to generate `scanners.c` from
 `scanners.re`.  We have included a pre-generated `scanners.c` in
 the repository to reduce build dependencies.