diff --git a/hledger-lib/package.yaml b/hledger-lib/package.yaml
index 784362e38..e17ac3156 100644
--- a/hledger-lib/package.yaml
+++ b/hledger-lib/package.yaml
@@ -53,7 +53,8 @@ dependencies:
 - file-embed >=0.0.10
 - filepath
 - hashtables >=1.2.3.1
-- megaparsec >=9.3 && <9.4
+- megaparsec >=7.0.0 && <9.4
+#- megaparsec >=9.3 && <9.4
 - microlens >=0.4
 - microlens-th >=0.4
 - mtl >=2.2.1
diff --git a/hledger-ui/package.yaml b/hledger-ui/package.yaml
index d248ebe9b..ce1fd217a 100644
--- a/hledger-ui/package.yaml
+++ b/hledger-ui/package.yaml
@@ -65,7 +65,8 @@ dependencies:
 - fsnotify >=0.4 && <0.5
 - microlens >=0.4
 - microlens-platform >=0.2.3.1
-- megaparsec >=9.3 && <9.4
+- megaparsec >=7.0.0 && <9.4
+#- megaparsec >=9.3 && <9.4
 - mtl >=2.2.1
 - process >=1.2
 - safe >=0.3.19
diff --git a/hledger-web/package.yaml b/hledger-web/package.yaml
index 3bff9bbd3..ad2869165 100644
--- a/hledger-web/package.yaml
+++ b/hledger-web/package.yaml
@@ -125,7 +125,8 @@ library:
   - http-conduit
   - http-client
   - http-types
-  - megaparsec >=9.3 && <9.4
+  - megaparsec >=7.0.0 && <9.4
+  #- megaparsec >=9.3 && <9.4
   - mtl >=2.2.1
   - network
   - shakespeare >=2.0.2.2
diff --git a/hledger/package.yaml b/hledger/package.yaml
index 8b5ce9ea5..01ac19920 100644
--- a/hledger/package.yaml
+++ b/hledger/package.yaml
@@ -111,7 +111,8 @@ dependencies:
 - filepath
 - githash >=0.1.6.2
 - haskeline >=0.6
-- megaparsec >=9.3 && <9.4
+- megaparsec >=7.0.0 && <9.4
+#- megaparsec >=9.3 && <9.4
 - microlens >=0.4
 - mtl >=2.2.1
 - process
diff --git a/stack.yaml b/stack.yaml
index e84b34363..f34606a29 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -9,8 +9,8 @@ packages:
 - hledger-web
 
 extra-deps:
-# for hledger-lib:
 - megaparsec-9.3.0
+# for hledger-lib:
 # - breakpoint-0.1.2.0
 # for hledger:
 # for hledger-ui:
diff --git a/stack9.0.yaml b/stack9.0.yaml
index 4a76d2aab..76f8dc58e 100644
--- a/stack9.0.yaml
+++ b/stack9.0.yaml
@@ -17,6 +17,7 @@ packages:
 - hledger-web
 
 extra-deps:
+- megaparsec-9.3.0
 # for hledger-lib:
 # - breakpoint-0.1.2.0
 # for hledger:
diff --git a/stack9.4.yaml b/stack9.4.yaml
index bea08a23b..e8ff6426f 100644
--- a/stack9.4.yaml
+++ b/stack9.4.yaml
@@ -9,6 +9,7 @@ packages:
 - hledger-web
 
 extra-deps:
+- megaparsec-9.3.0
 # for hledger-lib:
 # - breakpoint-0.1.2.0
 # for hledger: