diff --git a/scripts/test.sh b/scripts/test.sh
index 57776f3cf..e4c279a8b 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -4,7 +4,7 @@
 build_botan()
 {
 	# same revision used in the build recipe of the testing environment
-	BOTAN_REV=2.14.0
+	BOTAN_REV=2.15.0
 	BOTAN_DIR=$DEPS_BUILD_DIR/botan
 
 	if test -d "$BOTAN_DIR"; then
diff --git a/testing/scripts/recipes/011_botan.mk b/testing/scripts/recipes/011_botan.mk
index 7244a20fb..1f4fcf3fc 100644
--- a/testing/scripts/recipes/011_botan.mk
+++ b/testing/scripts/recipes/011_botan.mk
@@ -2,7 +2,7 @@
 
 PKG = botan
 SRC = https://github.com/randombit/$(PKG).git
-REV = 2.14.0
+REV = 2.15.0
 
 NUM_CPUS := $(shell getconf _NPROCESSORS_ONLN)