diff --git a/src/Makevars.ucrt b/src/Makevars.ucrt
new file mode 100644
index 0000000..1a2e101
--- /dev/null
+++ b/src/Makevars.ucrt
@@ -0,0 +1,2 @@
+CRT=-ucrt
+include Makevars.win
diff --git a/src/Makevars.win b/src/Makevars.win
index 4439537..11c6808 100644
--- a/src/Makevars.win
+++ b/src/Makevars.win
@@ -1,6 +1,6 @@
-VERSION = 1.1.1g
+VERSION = 1.1.1k
 PKG_CPPFLAGS = -I../windows/openssl-$(VERSION)/include
-PKG_LIBS = -Lbcrypt -lstatbcrypt -L../windows/openssl-$(VERSION)/lib${R_ARCH} \
+PKG_LIBS = -Lbcrypt -lstatbcrypt -L../windows/openssl-$(VERSION)/lib${R_ARCH}${CRT} \
 	-lssl -lcrypto -lws2_32 -lgdi32 -lcrypt32
 STATLIB = bcrypt/libstatbcrypt.a
 LIBBCRYPT = bcrypt/bcrypt_pbkdf.o bcrypt/blowfish.o