diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5839a671..9114811e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Install Crystal
         uses: crystal-lang/install-crystal@v1
         with:
-          crystal: 1.7.2
+          crystal: 1.7.3
 
       - run: shards install --production
 
@@ -66,7 +66,7 @@ jobs:
       - name: Install Crystal
         uses: crystal-lang/install-crystal@v1
         with:
-          crystal: 1.7.2
+          crystal: 1.7.3
 
       - name: Install dependencies
         run: shards install --production
diff --git a/Dockerfile b/Dockerfile
index 9af71567..32939c9b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
-FROM crystallang/crystal:1.7.2-alpine
+FROM crystallang/crystal:1.7.3-alpine
 
 RUN apk add sqlite-dev sqlite-static
diff --git a/Makefile b/Makefile
index ac65467c..0c59e6db 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 UUID := $(shell id -u)
 GUID := $(shell id -g)
-CRYSTAL_VERSION := 1.7.2
+CRYSTAL_VERSION := 1.7.3
 
 compile:
 	crystal build src/cli.cr -o dist/coveralls --progress