diff --git a/jbmc/lib/java-models-library b/jbmc/lib/java-models-library
index 766ac7a2c87..1f41012e0cd 160000
--- a/jbmc/lib/java-models-library
+++ b/jbmc/lib/java-models-library
@@ -1 +1 @@
-Subproject commit 766ac7a2c87dadfc7286ea0aab0a6eabdf3e4cdc
+Subproject commit 1f41012e0cdb10371fe1e37348dfeabc8205bdf4
diff --git a/jbmc/regression/jbmc-strings/StringBuilderChars04/test.desc b/jbmc/regression/jbmc-strings/StringBuilderChars04/test.desc
index 0923359deef..8df4c46ffc9 100644
--- a/jbmc/regression/jbmc-strings/StringBuilderChars04/test.desc
+++ b/jbmc/regression/jbmc-strings/StringBuilderChars04/test.desc
@@ -1,6 +1,6 @@
-FUTURE
+CORE
 StringBuilderChars04.class
---max-nondet-string-length 1000 --unwind 100
+--max-nondet-string-length 1000 --unwind 100 --cp `../../../../scripts/format_classpath.sh . ../../../lib/java-models-library/target/core-models.jar`
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$
diff --git a/jbmc/regression/jbmc-strings/StringMiscellaneous01/test.desc b/jbmc/regression/jbmc-strings/StringMiscellaneous01/test.desc
index b6fc0921c0c..5166387582c 100644
--- a/jbmc/regression/jbmc-strings/StringMiscellaneous01/test.desc
+++ b/jbmc/regression/jbmc-strings/StringMiscellaneous01/test.desc
@@ -1,6 +1,6 @@
-FUTURE
+CORE
 StringMiscellaneous01.class
---max-nondet-string-length 1000 --unwind 30
+--max-nondet-string-length 1000 --unwind 30 --cp `../../../../scripts/format_classpath.sh . ../../../lib/java-models-library/target/core-models.jar`
 ^EXIT=0$
 ^SIGNAL=0$
 ^VERIFICATION SUCCESSFUL$