diff --git a/untested_base/Makefile b/untested_base/Makefile
index 85739d4..cad7dcb 100644
--- a/untested_base/Makefile
+++ b/untested_base/Makefile
@@ -1,6 +1,6 @@
 PYTHON_VERSION ?= 3
-PROJ_VERSION ?= 9.3.0
-GDAL_VERSION ?= 3.8.0
+PROJ_VERSION ?= 9.3.1
+GDAL_VERSION ?= 3.8.3
 
 DEV_TAG ?= ghcr.io/oggm/dev_base:latest
 EMPTY_TAG ?= ghcr.io/oggm/empty_base:latest