diff --git a/AUTHORS b/AUTHORS
index 8d62c161b..1e6708322 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -32,6 +32,7 @@ NixAJ
 Paolo-Oliverio
 pgruenbacher
 prowolf
+stefanofiorentino
 suVrik
 szunhammer
 The5-1
diff --git a/cmake/in/cereal.in b/cmake/in/cereal.in
index ef353b7e9..0e1e754b2 100644
--- a/cmake/in/cereal.in
+++ b/cmake/in/cereal.in
@@ -7,6 +7,7 @@ ExternalProject_Add(
     cereal
     GIT_REPOSITORY https://github.com/USCiLab/cereal.git
     GIT_TAG v1.2.2
+    GIT_SHALLOW 1
     DOWNLOAD_DIR ${CEREAL_DEPS_DIR}
     TMP_DIR ${CEREAL_DEPS_DIR}/tmp
     STAMP_DIR ${CEREAL_DEPS_DIR}/stamp
diff --git a/cmake/in/duktape.in b/cmake/in/duktape.in
index 98a00c710..81e96a73d 100644
--- a/cmake/in/duktape.in
+++ b/cmake/in/duktape.in
@@ -7,6 +7,7 @@ ExternalProject_Add(
     duktape
     GIT_REPOSITORY https://github.com/svaarala/duktape-releases.git
     GIT_TAG v2.2.0
+    GIT_SHALLOW 1
     DOWNLOAD_DIR ${DUKTAPE_DEPS_DIR}
     TMP_DIR ${DUKTAPE_DEPS_DIR}/tmp
     STAMP_DIR ${DUKTAPE_DEPS_DIR}/stamp
diff --git a/cmake/in/googletest.in b/cmake/in/googletest.in
index ab1f6e3fe..56597dcf5 100644
--- a/cmake/in/googletest.in
+++ b/cmake/in/googletest.in
@@ -7,6 +7,7 @@ ExternalProject_Add(
     googletest
     GIT_REPOSITORY https://github.com/google/googletest.git
     GIT_TAG master
+    GIT_SHALLOW 1
     DOWNLOAD_DIR ${GOOGLETEST_DEPS_DIR}
     TMP_DIR ${GOOGLETEST_DEPS_DIR}/tmp
     STAMP_DIR ${GOOGLETEST_DEPS_DIR}/stamp