diff --git a/.gitmodules b/.gitmodules
index 227e3ec..c5fd96e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "libs/bsyncio"]
 	path = libs/bsyncio
 	url = git@gitlab.com:slumber/bsyncio.git
+[submodule "libs/esper"]
+	path = libs/esper
+	url = https://github.com/benmoran56/esper.git
diff --git a/libs/esper b/libs/esper
new file mode 160000
index 0000000..5b6cd0c
--- /dev/null
+++ b/libs/esper
@@ -0,0 +1 @@
+Subproject commit 5b6cd0c51718d5dcfa0e5613f824b5251cf092ac