diff --git a/.gitmodules b/.gitmodules
index 5f05d51..ad08f4b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,13 +3,13 @@
 	url = https://github.com/status-im/Nim.git
 	ignore = dirty
 	branch = nimbus
-[submodule "vendor/Nim-csources"]
-	path = vendor/Nim-csources
-	url = https://github.com/nim-lang/csources.git
-	ignore = dirty
-	branch = master
 [submodule "vendor/nimble"]
 	path = vendor/nimble
 	url = https://github.com/nim-lang/nimble.git
 	ignore = dirty
 	branch = master
+[submodule "vendor/Nim-csources-v1"]
+	path = vendor/Nim-csources-v1
+	url = https://github.com/nim-lang/csources_v1.git
+	ignore = untracked
+	branch = master
diff --git a/makefiles/targets.mk b/makefiles/targets.mk
index 5a1e715..1298379 100644
--- a/makefiles/targets.mk
+++ b/makefiles/targets.mk
@@ -78,7 +78,7 @@ build-nim: | sanity-checks
 		MAKE="$(MAKE)" \
 		ARCH_OVERRIDE=$(ARCH_OVERRIDE) \
 		QUICK_AND_DIRTY_COMPILER=$(QUICK_AND_DIRTY_COMPILER) \
-		"$(CURDIR)/$(BUILD_SYSTEM_DIR)/scripts/build_nim.sh" "$(NIM_DIR)" ../Nim-csources ../nimble "$(CI_CACHE)"
+		"$(CURDIR)/$(BUILD_SYSTEM_DIR)/scripts/build_nim.sh" "$(NIM_DIR)" ../Nim-csources-v1 ../nimble "$(CI_CACHE)"
 
 #- for each submodule, delete checked out files (that might prevent a fresh checkout); skip dotfiles
 #- in case of submodule URL changes, propagates that change in the parent repo's .git directory
diff --git a/vendor/Nim-csources b/vendor/Nim-csources
deleted file mode 160000
index f72f471..0000000
--- a/vendor/Nim-csources
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f72f471adb743bea4f8d8c59d19aa1cb885dcc59
diff --git a/vendor/Nim-csources-v1 b/vendor/Nim-csources-v1
new file mode 160000
index 0000000..a8a5241
--- /dev/null
+++ b/vendor/Nim-csources-v1
@@ -0,0 +1 @@
+Subproject commit a8a5241f9475099c823cfe1a5e0ca4022ac201ff